70mai T800

70mai T800 Ultra HD Dual 4K 3-Channel HDR GPS ADAS Dash Cam User Manual

Model: T800

1. Product Overview

Please read this manual carefully before using the product and keep it in a safe place.

70mai T800 Dash Cam main unit with interior camera and phone app view
Figure 1: 70mai T800 Dash Cam with interior camera and app interface

Package Contents

If you purchased the dash cam only, check for the following items:

  • Dash Cam × 1
  • Mount × 1
  • Power cord × 1
  • Car charger × 1
  • Wiring trim tool × 1
  • Electrostatic sticker × 1
  • User manual × 1

If you purchased the Dash Cam Set, check for the following items:

  • Dash Cam × 1
  • Mount × 1
  • Power cord × 1
  • Car charger × 1
  • Wiring trim tool × 1
  • Electrostatic sticker × 1
  • User manual × 1
  • Rear camera package* × 1

* This package contains the rear camera (integrated with lead wire), signal wire, and other accessories for the rear camera. For more information about the rear camera, please refer to the rear camera user manual.

Contents of the T800-2 HDR Set including dash cam, rear camera, memory card, power accessories, and tools
Figure 2: T800-2 HDR Set Package Contents
Contents of the T800-41 Premium Set including dash cam, 4K rear camera, memory card, power accessories, and tools
Figure 3: T800-41 Premium Set Package Contents

Dash Cam Components

  1. Display
  2. Function buttons
  3. Power button
  4. Microphone
  5. Ventilation holes
  6. Indicator
  7. Mount slot
  8. Camera
  9. Speaker
  10. Rear camera port
  11. Power port
  12. Memory card slot
  13. Adhesive sticker

Note: Illustrations of the product, accessories, and user interface in the user manual are for reference purposes only. The actual product and functions may vary due to product enhancements.

2. Setup and Installation

2.1. Installing the Electrostatic Sticker

Paste the electrostatic sticker on the recommended area on the front windshield. Press the sticker to remove air bubbles. Avoid the edge of the windshield and select a flat and smooth area for installation.

Note: Keep the windshield clean and dry without liquid residue to prevent the sticker from losing adhesion and the dash cam from dropping.

Diagram showing electrostatic sticker placement on windshield
Figure 4: Electrostatic Sticker Installation

2.2. Installing the Mount

Attach the mount into the mount slot and slide up.

Diagram showing mount attachment to dash cam
Figure 5: Mount Installation

2.3. Installing the Memory Card

Insert the memory card into the card slot.

Diagram showing memory card insertion into dash cam
Figure 6: Memory Card Installation

2.4. Mounting the Dash Cam

Paste the dash cam onto the electrostatic sticker.

Diagram showing dash cam mounting on electrostatic sticker
Figure 7: Dash Cam Mounting

2.5. Routing Cable

Route the power cord to the cigarette lighter and connect power.

Notes:

  • Use the included wiring trim tool to hide the power cord underneath the vehicle's headliner and rubber seal along the A-pillar.
  • Depending on the vehicle, the cigarette lighter socket may be located in a different position. The above figure is for reference only.

2.6. Adjusting the Camera Angle

Turn on the dash cam and adjust the camera angle based on the preview screen.

3. Operating Instructions

3.1. Triple View Recording with HDR

The 70mai T800 supports three-channel hardware-level HDR recording, balancing image brightness and darkness, brightening shadows for sharper details and darkening highlights to minimize overexposure, resulting in a more natural and realistic image.

Triple HDR View, Dual 4K Sony STARVIS 2, showing front 4K, rear 4K, and inside 1080P recording
Figure 8: Triple Channel HDR Recording

3.2. 4K 60FPS Recording

When the 4K T800 is used without a rear camera or paired with the RC24*, it supports true 4K (3840×2160) recording at 60 frames per second. It delivers ultra-smooth motion and stunning clarity, even at high driving speeds. Every detail is captured with remarkable precision, making it the perfect choice for drivers who prioritize the highest image quality.

From fast-paced city drives to scenic highway cruising, the 4K T800 preserves every moment in vivid, fluid detail.

  • *4K 60FPS is exclusive to RC24. When paired with RC41, the 4K T800 supports up to 4K 60FPS.
  • **When the front camera records at 60FPS, the interior will adjust from 30FPS to 20FPS, while the rear will remain at 30FPS.
Comparison of 4K 60FPS vs. other 4K 30FPS video quality
Figure 9: 4K 60FPS Video Quality

3.3. Superlative Image Quality Features

  • F1.7 Large Aperture: The T800 features an F1.7 large aperture, significantly increasing light intake. Combined with the industry-leading STARVIS2 sensor, it delivers clearer, brighter video even during nighttime driving. (Note: The smaller the number, the larger the aperture, allowing for more light intake. F1.7 > F1.8 > F2.0)
  • MaiColor Vivid+ Solution™: Auto exposure technology, Selective image processing, Windshield color and transparency compensation.
  • Night Owl Vision™: A proprietary night vision algorithm specifically developed for nighttime conditions, delivering higher clarity, lower noise, more balanced exposure, and superior glare control.
  • 70mai Lumi Vision: Ensures clear viewing of parking surveillance footage around the vehicle, even in near-total darkness.
Image illustrating F1.7 Large Aperture, MaiColor Vivid+ Solution, 70mai Night Owl Vision, and 70mai Lumi Vision
Figure 10: Superlative Image Quality Features

3.4. Buffered Emergency Recording

The 4K T800 now features upgraded Buffered Emergency Recording, extending the buffer beyond 10 seconds (up to 3 minutes)*. It captures the pre-collision buffer, the exact moment of impact, and 30 seconds of post-collision footage, ensuring all crucial moments are recorded.

*The buffer length depends on the collision's timing within the loop recording and the selected loop duration. The default loop duration is set to 1 minute, but you can adjust it to 2 or 3 minutes if needed.

Diagram showing buffered emergency recording saving footage before and after an incident
Figure 11: Buffered Emergency Recording

3.5. Smart Parking Guardian Mode

The 70mai Hardwire Kit or 4G Hardwire Kit is required for smart parking guardian mode and is sold separately.

  • App Live Streaming: When the front camera detects suspicious movement, all three cameras start recording for 30 seconds.
  • Collision Detection: G-sensor auto-activates all cameras to capture key footage from every angle during parking incidents - ideal for capturing break-ins or hit-and-runs.
  • 3-Channel Time-Lapse Recording: Compresses 15 minutes into 1 minute - now with front, rear, and interior coverage for full-scene playback.
Diagram showing Smart Parking Guardian Mode features: App Live Streaming, Collision Detection, and Three-Channel Time-Lapse Recording
Figure 12: Smart Parking Guardian Mode

3.6. Stable Power & Smart Monitoring

  • Supercapacitor - Safe & Reliable: Offers better thermal resistance, long cycle life, and is eco-friendly.
  • Real-Time Battery Voltage Monitoring*: Visualize battery status in real time, prevent power drain with 9-level protection and auto shut-off on low voltage.

*Kind Reminder: The 70mai Hardwire Kit UP04 is required.

Image showing supercapacitor benefits and real-time battery voltage monitoring via app
Figure 13: Supercapacitor and Battery Monitoring

3.7. Built-in GPS and ADAS

  • Built-in GPS: Captures speed, time, and precise coordinates, seamlessly logged for review in the 70mai App, offering proof of travel and route optimization.
  • Built-in ADAS: Warns you in advance to minimize driving hazards: lane departure, forward vehicle start, forward collision, and adding identifications on pedestrians and cyclists to provide an extra layer of safety for your journey.
Image showing built-in GPS tracking and ADAS alerts for lane departure, forward collision, forward vehicle start, pedestrians, and cyclists
Figure 14: Built-in GPS and ADAS Features

3.8. 4G Compatibility

The 4G connectivity ensures uninterrupted communication with your vehicle from any location.

*Kind Reminder: The 70mai Hardwire Kit UP04 is required and sold separately.

  • Instant App Alert: Instant push alerts for collisions or unusual events during parking mode.
  • App Live Streaming: Live stream your car's surroundings in real time, even when someone else is driving. Snap photos or record remotely via the app.
  • Find My Car & Live Route Tracking: Easily locate your car in busy areas and track its live route, giving you peace of mind when you are not driving.
Image showing 4G compatible features: Instant App Alert, App Live Streaming, Find My Car & Live Route Tracking
Figure 15: 4G Compatible Features

3.9. Larger Storage Capacity & Faster Download Speed

  • Wi-Fi 6 5GHz: Up to 40MB/s, now you can download a 200MB video in just 5 seconds!
  • Up to 512GB storage: Enjoy larger external storage capacity and say goodbye to storage anxiety!
Image showing Wi-Fi 6 5GHz for faster downloads and support for up to 512GB external storage
Figure 16: Storage and Download Speed

3.10. Smart Voice Control

The 4K T800 allows multi-language voice control beyond English and Mandarin, with added support for Japanese and Italian. Take photos/videos, turn on/off audio - all with simple voice commands.

Image showing various voice commands like Enable Hotspot, Disable Hotspot, Turn Off Audio, Take Photo, Record Vlog, Record Audio
Figure 17: Smart Voice Control Commands

3.11. Picture-in-Picture Mode

  • Supports viewing front, back, and interior footage simultaneously on the device screen.
  • Tap to toggle the display of each screen to the home screen, or turn off internal recording.
Image showing Picture-in-Picture mode on the dash cam screen with multiple camera views
Figure 18: Picture-in-Picture Mode

3.12. Stylish Add-ons

  • Master Watermark: Freeze Your Moment.
  • Road Story Filter: Create Your Fun Odyssey.
Image showing Master Watermark and Road Story Filter features on a smartphone app
Figure 19: Stylish Add-ons

3.13. 70mai App

This product may be used in conjunction with the 70mai app. You can download and install the app by scanning the QR code or finding "70mai" in the app store.

Note: Android 5.0 & iOS 11.0 or above is required to connect to the dash cam's Wi-Fi hotspot with a mobile phone.

For more on product functions and FAQs, please see the online user guide by scanning the QR code provided in the package or on the 70mai website.

4. Maintenance

4.1. Memory Card Instructions

  • A memory card (sold separately) must be installed in the dash cam before use.
  • The dash cam supports standard MicroSD cards. Please use memory cards with a minimum capacity of 32GB and rating of U3(UHS-3) or above.
  • The default file partition format of the memory card may be inconsistent with the format supported by the dash cam. When inserting the memory card for the first time, please format it in the dash cam before use. Formatting the memory card will delete all files on the card. Please back up important data to another device beforehand.
  • The memory card may become damaged or deteriorated after repeated cycles of overwriting, and this may affect its ability to save video and image files. If this occurs, immediately replace it with a new memory card.
  • Please use a high-quality memory card purchased from a reputable vendor. Inferior memory cards may have issues such as the actual reading/writing speeds do not match the stated speeds, and the actual storage capacity does not match the stated storage capacity. We shall not be held liable for lost or damaged videos caused by the use of a low-quality memory card.
  • Do not insert or remove a memory card while the dash cam is turned on.

4.2. Cleaning and Care

  • Keep the windshield clean and dry without liquid residue to ensure proper adhesion of the electrostatic sticker.
  • Keep the dash cam away from any strong magnetic fields, as they may cause damage to the dash cam.

5. Troubleshooting

  • If the battery becomes deformed, swollen, or starts leaking during use or storage, stop using the dash cam immediately in order to avoid safety issues, and contact after-sales service.
  • If the dash cam functions abnormally due to power failure, usage in environments outside normal operating temperature or humidity range, a collision, or a damaged memory card, try restarting the device or checking the memory card.
  • If this equipment causes harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
    • Reorient or relocate the receiving antenna.
    • Increase the separation between the equipment and receiver.
    • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
    • Consult the dealer or an experienced radio/TV technician for help.

6. Specifications

ParameterValue
ProductDash Cam
ModelT800 (A810, A810-2 series manual)
Input5V = 2A
Battery Capacity500mAh
Resolution3840 x 2160
LensFOV 150°, F1.8
Battery TypeLi-ion battery
Power SupplyCar cigarette lighter
Wireless ConnectivityWi-Fi IEEE 802.11 b/g/n 2.4GHz, Bluetooth® 4.2
Bluetooth/Wi-Fi Operation Frequency2400-2483.5MHz
GPS/GLONASS Operation Frequency1559–1610MHz
Bluetooth Maximum Output< 13dBm
Wi-Fi Maximum Output< 20dBm
Detailed parameter table for 70mai Dash Cam 4K T800 Premium Set and HDR Set
Figure 20: Detailed Product Parameters

7. Safety and Compliance

7.1. Precautions

  • This dash cam is intended to assist drivers with the purpose of recording the environment outside the vehicle. The dash cam does not guarantee the user's driving safety. We shall not be held liable for any accident, damage, or loss of information caused by operating the dash cam while driving.
  • Due to differences in vehicle conditions, driving style, driving environment, etc., some functions may not work properly. A power failure, usage in environments outside the normal operating temperature or humidity range, a collision, or a damaged memory card may cause the dash cam to function abnormally. There is no guarantee that this dash cam will function normally under all circumstances. Videos recorded by this dash cam are for reference only.
  • Please install this dash cam correctly, and do not block the driver's line of sight, nor block the vehicle's airbag, in order to avoid product failure or personal injury.
  • Please use the included car charger, power cord, and other accessories in order to avoid product failure due to non-conformance. We shall not be held liable for any loss or damage caused by the use of a non-genuine car charger or power cord.
  • If the battery becomes deformed, swollen, or starts leaking during use or storage, stop using the dash cam immediately in order to avoid safety issues, and contact after-sales service.
  • Please keep this dash cam away from any strong magnetic fields, as they may cause damage to the dash cam.
  • Do not use this dash cam in environments with temperatures over 60°C or below -10°C.
  • Please only use this dash cam within the scope permitted by law.

7.2. Regulatory Compliance Information

WEEE Information

All products bearing this symbol are waste electrical and electronic equipment (WEEE as in directive 2012/19/EU) which should not be mixed with unsorted household waste. Instead, you should protect human health and the environment by handing over your waste equipment to a designated collection point for the recycling of waste electrical and electronic equipment, appointed by the government or local authorities. Correct disposal and recycling will help prevent potential negative consequences to the environment and human health. Please contact the installer or local authorities for more information about the location as well as terms and conditions of such collection points.

EU Declaration of Conformity

The manufacturer hereby, declares that this equipment is in compliance with the applicable Directives and European Norms, and amendments. The full text of the EU declaration of conformity is available at the following internet address: https://help.70mai.asia/1193.html

UKCA Declaration of Conformity

Hereby, 70mai Co.,Ltd. declares that the radio equipment types T800 (A810 and A810-2 in manual) are in compliance with Radio Equipment Regulations 2017. The full text of the UKCA declaration of conformity is available at the following internet address: https://help.70mai.asia/2145.html

FCC Statement

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 cm between the radiator & your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. FCC ID: 2AOK9-A810

ISED Compliance Statement

This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device must accept any interference, including interference that may cause undesired operation of the device. L'émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d'Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes: (1) L'appareil ne doit pas produire de brouillage; (2) L'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20 cm between the radiator and your body. Cet équipement est conforme aux limites d'exposition aux radiations IC CNR-102 établies pour un environnement non contrôlé. Cet équipement doit être installé et utilisé avec une distance minimale de 20 cm entre le radiateur et votre corps. IC: 28033-A810

Bluetooth® Trademarks

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by 70mai Co., Ltd. is under license. Other trademarks and trade names are those of their respective owners.

8. Warranty and Support

For service and support, please contact: help@70mai.com

For further information, please visit: www.70mai.com

Manufacturer: 70mai Co., Ltd.

Address: Room 2220, Building 2, No. 588 Zixing Road, Minhang District, Shanghai, China

You can also refer to the official user manual PDF for more detailed information: 70mai Dash Cam User Manual (PDF)

9. User Tips

  • For optimal performance, ensure your memory card is a high-quality U3 (UHS-3) MicroSD card with at least 32GB capacity.
  • Regularly check for firmware updates via the 70mai app to ensure you have the latest features and bug fixes.
  • When routing cables, take your time to properly tuck them away using the provided trim tool to maintain a clean interior and prevent interference.
  • Utilize the voice control features for hands-free operation, enhancing safety while driving.

70mai Dash Cam 4K T800: Triple View, Dual 4K, 3-Channel HDR Car Camera

70mai Dash Cam 4K T800: Triple View, Dual 4K, 3-Channel HDR Car Camera

1:19 • 1280×720 • promo

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