Introduction
Thank you for choosing the Siindoo JH-ANC805B Active Noise Cancelling Wireless Headphones. This manual provides essential information for setting up, operating, and maintaining your headphones to ensure optimal performance and longevity. Please read this manual carefully before using your headphones.
What's in the Box
Your Siindoo JH-ANC805B package includes the following items:
- 1 x Siindoo ANC805B Headphone
- 1 x 0.3m Type-C Charging Cable
- 1 x 1.2m AUX Cable
- 1 x User Manual
- 1 x Storage Pack

Product Overview and Controls
Familiarize yourself with the various parts and controls of your Siindoo JH-ANC805B headphones:

- Headband: Features sponge padding for comfort.
- Extendable Metal Headband: Allows for size adjustment.
- Sponge Mesh Mat: Enhances comfort.
- ANC Switch: Toggles Active Noise Cancellation on/off.
- Type-C Charging Port: For charging the headphones.
- Microphone: For hands-free calls.
- 3.5mm Jack: For wired audio connection.
- Volume - Button: Decreases volume.
- On/Off Button: Powers the headphones on or off, also used for Bluetooth pairing and playback control.
- Volume + Button: Increases volume.
- Indicator Light: Shows power, charging, and Bluetooth status.
- Soft Comfortable Ear Pads: Made with protein leather and memory foam for extended wear.
- 90° Swiveling Ear Pads: Allows for flexible fit and compact storage.
Setup Instructions
1. Charging Your Headphones
- Connect the provided Type-C charging cable to the charging port on your headphones.
- Connect the other end of the cable to a USB power source (e.g., computer, wall adapter).
- The indicator light will show charging status. A full charge takes approximately 3 hours.

2. Bluetooth Pairing
- Ensure your headphones are charged.
- Press and hold the On/Off button until the indicator light flashes blue and red, indicating pairing mode.
- On your device (smartphone, tablet, PC), go to Bluetooth settings and turn on Bluetooth.
- Search for available devices and select "siindoo-ANC1" (or similar model name) from the list.
- Once connected, the indicator light will turn solid blue or flash blue slowly.
3. Wired Connection
- Locate the 3.5mm audio jack on your headphones.
- Connect one end of the provided 1.2m AUX cable to the headphone's 3.5mm jack.
- Connect the other end of the AUX cable to the 3.5mm audio output of your desired device.
- The headphones will automatically switch to wired mode.
Operating Instructions
Power On/Off
- Power On: Press and hold the On/Off button for approximately 3 seconds until the indicator light turns on.
- Power Off: Press and hold the On/Off button for approximately 3 seconds until the indicator light turns off.
Active Noise Cancellation (ANC)
- To activate ANC, slide the ANC switch to the 'ON' position. The indicator light will turn green.
- To deactivate ANC, slide the ANC switch to the 'OFF' position.
- ANC effectively reduces low and mid-frequency ambient noise, such as engine hum or office chatter.

Volume Control
- Increase Volume: Press the Volume + button.
- Decrease Volume: Press the Volume - button.
Music Playback Control (in Bluetooth mode)
- Play/Pause: Short press the On/Off button.
- Next Track: Long press the Volume + button.
- Previous Track: Long press the Volume - button.
Call Management (in Bluetooth mode)
- Answer/End Call: Short press the On/Off button.
- Reject Call: Long press the On/Off button.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the earcups and headband. Avoid using harsh chemicals or abrasive materials.
- Storage: When not in use, store your headphones in the provided storage pack to protect them from dust and damage.
- Environmental Conditions: Avoid exposing the headphones to extreme temperatures, direct sunlight, or high humidity.
Troubleshooting
- Headphones do not power on: Ensure the headphones are fully charged. Connect them to a power source using the Type-C cable.
- Cannot pair via Bluetooth: Make sure the headphones are in pairing mode (indicator light flashing blue and red). Ensure Bluetooth is enabled on your device and it is within the 10-meter range. Try forgetting previous pairings on your device and re-pairing.
- No sound in wired mode: Check that the 3.5mm AUX cable is securely connected to both the headphones and your audio device. Verify that the volume on both the headphones and the audio device is turned up.
- ANC not effective: Ensure the ANC switch is in the 'ON' position. Active Noise Cancellation is most effective against consistent low-frequency sounds and may not completely eliminate all types of noise.
Specifications
| Feature | Specification |
|---|---|
| Brand Name | siindoo |
| Model | JH-ANC805B |
| Communication | Wireless+Wired |
| Wireless Type | Bluetooth |
| Bluetooth Version | 5.3 |
| Maximum Wireless Range | <10m |
| Active Noise-Cancellation | Yes |
| Vocalism Principle | Dynamic |
| Driver Diameter | 40mm |
| Number Of Drivers | 2 |
| Impedance Range | up to 32 Ω (32Ω) |
| Frequency Response Range | 20 - 20000Hz |
| Sensitivity | 111dB |
| Max Output | 45mW |
| Total Harmonic Distortion | 5% |
| With Microphone | Yes |
| Volume Control | Yes |
| Control Button | Yes |
| Charging Method | Type-C cable |
| Battery Capacity | 600 mAh |
| Charging Time | 3 hours |
| Working Time (ANC on) | 25 hours |
| Working Time (ANC off) | 35 hours |
| Line Length (AUX cable) | 1.2m |
| Headphone Pads Material | Memory Foam |
| Magnet Type | Neodymium |
| Material | Metal, Plastic, Leather, Silica Gel |
| Certification | CE, FCC, RoHS, WEEE |
| Origin | Mainland China |
User Tips
- For optimal comfort during long listening sessions, adjust the headband and earcups to fit snugly but without excessive pressure. The memory foam earcups are designed for extended wear.
- To maximize battery life, remember to turn off Active Noise Cancellation (ANC) when not needed, as it consumes additional power.
- If you experience any audio lag or connection issues, try resetting the Bluetooth connection on both your headphones and your device.
Warranty and Support
Siindoo products are manufactured to high-quality standards. For any product inquiries, technical assistance, or warranty claims, please contact Siindoo customer support directly. Keep your purchase receipt as proof of purchase for warranty purposes.
The Siindoo JH-ANC805B headphones are certified with CE, FCC, RoHS, and WEEE standards, ensuring compliance with relevant safety and environmental regulations.