1. Introduction
This manual provides detailed instructions for the safe and effective use of your AUSEK S81TRW Action Camera. Please read this manual thoroughly before operating the device and keep it for future reference.

2. Safety Information
- Do not expose the camera to extreme temperatures or direct sunlight for prolonged periods.
- Keep the device away from strong magnetic fields.
- Ensure all ports are securely closed when using the camera near water, especially without the waterproof case.
- Use only approved accessories and power adapters.
- Do not attempt to disassemble or modify the camera.
3. Package Contents
The standard package includes the AUSEK S81TRW Camera and official accessories. Depending on your purchase option, additional items like filters, memory cards, or an external microphone may be included.

Standard Camera Package:
- AUSEK S81TRW Camera
- 1 x 1350mAh Battery
- Official Accessories (various mounts, charger, cables, etc. as shown in image)
Optional Add-ons:
- 6 Filters (Macro, CPL, Purple, ND4, ND8, ND16)
- 64GB or 128GB Micro SDHC Card (U3 V30)
- External Microphone (wired or wireless, depending on model)
- Additional 1350mAh Battery
- Charger
4. Product Overview
The AUSEK S81TRW is a versatile action camera designed for high-quality video and photo capture in various environments. It features dual screens, electronic image stabilization, and support for external accessories.

Key Features:
- Video Resolution: Up to 5K 30FPS, 4K 60FPS, 1080P 120FPS
- Photo Resolution: Up to 48MP
- Image Stabilization: 6-axis Electronic Image Stabilization (EIS)
- Screens: IPS Color Dual Screen (2.0-inch rear touch screen, 1.44-inch front screen)
- Lens: 170° Wide Angle, 7-layer glass lens, Removable
- Connectivity: Built-in Wi-Fi, USB2.0, Micro HDMI
- Special Modes: Motion Detection, Car DVR Record Mode, Webcam Mode, Time-lapse, Slow Motion, Fast Motion, Loop Recording, Diving Mode, Long Exposure Photo, Distortion Correction
- Audio: Built-in Mic, Expand Microphone (S81TRW supports optional wireless mic)

5. Setup
5.1. Battery Installation
- Open the battery compartment cover.
- Insert the 1350mAh battery, ensuring correct polarity.
- Close the battery compartment cover securely.
5.2. Memory Card Installation
- Locate the MicroSD/TF card slot.
- Insert a compatible MicroSDHC Card (U3, Max 256GB) into the slot until it clicks into place.
- To remove, press the card gently until it pops out.
5.3. Waterproof Case Usage (for Diving)
For underwater activities, the camera requires a waterproof case (included in some bundles or sold separately). Ensure the camera is properly sealed within the case before submerging. The case provides protection up to 30 meters depth.

5.4. External Microphone Connection (S81TRW model)
The S81TRW model supports an optional wireless microphone for enhanced audio recording. Connect the wireless microphone according to its specific instructions. For wired external microphones, connect via the Type-C interface.

5.5. Remote Control Pairing
If your package includes a remote control, follow the instructions provided with the remote to pair it with your camera. This allows for convenient control of recording and photo capture from a distance.

6. Operating Instructions
6.1. Power On/Off
- To Power On: Press and hold the Power button until the screen lights up.
- To Power Off: Press and hold the Power button until the screen turns off.
6.2. Screen Switching (Front/Rear)
On S81TR and S81TRW models, long press the "down" button to switch between the 2.0-inch rear touch screen and the 1.44-inch front screen.

6.3. Video Recording and Photo Capture
- Video Resolutions: 5K/30fps, 4K/60fps, 4K/30fps, 2.7K/30fps, 1080p/120fps, 1080p/60fps.
- Photo Resolutions: 48MP, 24MP, 20MP, 16MP, 14MP, 10MP, 8MP, 5MP.
- Select your desired mode (video or photo) and resolution from the camera menu.
- Press the Shutter/Record button to start/stop recording or take a photo.
6.4. Electronic Image Stabilization (EIS)
The 6-axis EIS provides steady and smooth videos. Activate EIS through the camera settings for optimal results in dynamic shooting scenarios. Note that EIS does not support 1080P 120fps, 720P 240fps/120fps videos, and cannot be simultaneously activated with "distortion correction", "Slow Motion", or "Intelligent Noise Reduction".

6.5. Lens Distortion Correction (LDC)
The intelligent algorithm corrects lens distortion for a more natural visual effect in photos. This feature is not available for video recording.

6.6. Motion Detection
When "Motion Detection" is turned on, the camera will automatically start shooting when it detects movement. If no movement is detected for 15 seconds, shooting will stop. It will resume automatically when movement is detected again. To cancel motion detection, press the "OK" button or select "OFF" from the menu.

6.7. Digital Zoom
The camera supports 4X digital zoom. This allows you to magnify your subject without physically moving closer.
6.8. Wi-Fi & APP Connection
- Short press the "down" button on the camera to quickly open the camera's Wi-Fi hotspot.
- The default hotspot password is "1234567890".
- Connect your smartphone to the camera's Wi-Fi network via your phone's Wi-Fi settings.
- Download and install the "ismart DV" app on your Android or iOS device (scan QR codes in the image).
- Open the app to control the camera, view real-time footage, upload photos/videos, and share to social media.
- Short press the "down" button again to turn off the Wi-Fi hotspot.


6.9. Webcam Mode
The AUSEK action camera can function as a full HD 1080P webcam. Connect it to your computer via a USB cable; it is driver-free.

6.10. Car DVR Record Mode
The camera can be used as a Car DVR. The recommended setting for this mode is 1080P 60fps with looping record enabled.

6.11. Using Optional Filter Lenses
The camera supports various optional filter lenses to enhance your shooting creativity. These include Macro, CPL (Polarizing), Purple, and ND (Light Reduction) filters.

- Macro Filter: For close-up photography of subtle objects like flowers and insects.

Macro Filter Lens in use. - CPL (Polarizing) Filter: Eliminates reflections of light from glossy surfaces (water, glass) and improves image clarity and color vividness (blue sky, green leaves).

CPL Filter Lens in use. - Purple Filter: Adds a unique purple tint to photos and videos without post-editing.

Purple Filter Lens in use. - ND (Light Reduction) Filter: Reduces the amount of light entering the lens, preventing overexposure in bright conditions and allowing for slower shutter speeds for dynamic softening or shallow depth-of-field effects.

ND Filter Lens in use.
6.12. Multi-Language Menu
The camera supports multiple languages for its operation menu, including English, German, French, Italian, Spanish, Portuguese, Polish, Russian, Japanese, Dutch, Turkish, Thai, Korean, Vietnamese, Simplified Chinese, and Traditional Chinese.

7. Maintenance
- Cleaning: Use a soft, lint-free cloth to clean the camera body and lens. For stubborn dirt, slightly dampen the cloth with water. Do not use harsh chemicals.
- Storage: Store the camera in a cool, dry place away from direct sunlight and extreme temperatures. Remove the battery if storing for extended periods.
- Waterproof Case: After using the waterproof case in saltwater, rinse it thoroughly with fresh water and allow it to air dry.
8. Troubleshooting
- Camera not turning on: Ensure the battery is fully charged and correctly inserted.
- Poor image/video quality: Check lens for smudges, ensure correct resolution settings, and verify EIS/LDC settings are appropriate for the scene.
- Wireless microphone not pairing (S81TRW): Refer to the specific instructions provided with the wireless microphone for pairing procedures. Ensure the camera's Wi-Fi is active if required for pairing.
- Wi-Fi connection issues: Ensure the camera's Wi-Fi hotspot is active and you are using the correct password ("1234567890" by default).
9. Specifications
| Feature | Specification |
|---|---|
| Brand Name | AUSEK |
| Main Processor | Icatch V39 (4K/30fps) / iCatch V39A (for 5K models) |
| Image Sensor | Other SONY Series (IMX386) |
| Effective MegaPixel | >25MP (48MP) |
| Video Resolution | 4K 60fps/4k 30fps/2.7K 60fps/2.7K 30fps/1080P 120fps/1080P 60fps/etc. (Up to 5K 30fps for S81TR/TRW) |
| Video Format | MOV |
| Image Stabilization | Electronic Image Stabilization |
| Wideangle | 170° |
| Max depth | 40M (with waterproof case) |
| Waterproof | Yes (with waterproof case) |
| Display Screen | Yes (2.0" rear, 1.44" front) |
| Touch Screen | Yes (S81TR/TRW models) |
| Memory Card Support | 128G (Micro SDHC Card, U3. Max 256GB) |
| WIFI Support | Yes |
| Remote Control Support | Yes |
| Built-in Mic | Yes |
| Expand Microphone | Yes (S81TRW supports wireless mic) |
| HDMI-Compatible Output | Yes (Micro HDMI Support HDMI 2.0, 4K output) |
| USB Port | USB2.0, Support MSDC mode and PC Cam |
| Battery Capacity | 1350Mha |
| Volume | 66*33*43.8mm |
| Weight | 701g-800g |
| Supporting Language | Japanese,French,German,Italian,Spanish,Portuguese,Russian,English,Polish,Turkish,Korean,Dutch,Simplified Chinese,Traditional Chinese Style |
| Application | For Home,Semi-professional,Extreme Sports,Outdoor Sport Activities,Bicycle,CAR DVR,Diving,Beginner |
| Additional Function | Recording Function |
| Digital zoom | Support 4X |
| Time-lapse video | Support |
| Slow motion | Support |
| Fast motion video | Support |
| Loop recording | Support |
| Photo mode | Support |
| Time-lapse | Support |
| Long exposure photo | Support |
| Diving mode | Support |
| Distortion correction | Support |
| Remote controller | Support |
| External microphone | Support (optional) |
| Automatic shut-down | Support 1 minutes, 3 minutes,5 minutes |
| Screen saver | Screen saver |
10. User Tips
- For motorcycle helmet use or other activities requiring waterproofing, always ensure the camera is securely placed inside its waterproof case.
- The 5K video and 48MP photo capabilities offer excellent quality; ensure sufficient memory card space (U3 V30 recommended) for high-resolution recordings.
- When using the wireless microphone with the S81TRW, follow the specific pairing instructions to ensure proper audio capture.
- Consider purchasing additional mounting accessories for helmet or backpack strap attachment if not included in your bundle.
11. Warranty & Support
The product comes with a 24-month Manufacturer's limited Warranty for defective items (excluding items damaged and/or misused after receipt). Defective items must be reported and returned within the warranty period and in the original packaging, if possible. For any issues or support, please contact the seller directly.