Introduction
Thank you for purchasing this Audio-Technica product. This user manual provides essential information for the correct use of the ATH-ANC900BT Wireless Noise-Cancelling Headphones. Please read through the Quick Start Guide, Caution Guide, and this user manual before operation.
Safety Precautions
Adhering to safety guidelines is crucial for preventing accidents. Key precautions include:
- Avoid using near medical equipment, automatic control devices, or in aircraft without following instructions.
- Do not disassemble, modify, or subject the product to strong impact or water.
- Handle with dry hands and disconnect if malfunction occurs.
- Avoid overheating and do not cover the product.
- Observe driving laws regarding headphone use and avoid use in hazardous environments where ambient sound is critical.
- Use only the included USB charging cable and avoid high-voltage chargers.
- Protect hearing by not listening at excessive volumes.
- Discontinue use if skin irritation occurs.
- Exercise caution with battery handling to prevent leakage, heat, or explosion.
Notes on Use
For optimal performance and longevity:
- Always read the connected device's user manual.
- Audio-Technica is not liable for data loss.
- Maintain low volume in public places.
- Minimize device volume before connecting.
- Static electricity in dry environments may cause a tingling sensation.
- Avoid strong impacts, direct sunlight, high temperatures, humidity, and dust.
- Prolonged exposure to UV light may cause discoloration.
- Handle USB cables carefully when connecting/disconnecting.
- Store the product in its case when not in use.
- Phone call functionality is primarily for mobile telephone networks.
- Keep the product away from sources of electronic interference.
- Charge the battery at least once every six months.
- Touch panel operation requires careful handling to avoid damage or incorrect input.
- Ensure proper compatibility with airplane adapters.
Active Noise-Cancelling & Hear-Through
The ATH-ANC900BT features active noise-cancelling (ANC) to reduce ambient noise by outputting an inverse phase sound. It primarily targets noise below 300 Hz. The 'Hear-Through' function allows ambient sound to be heard via the microphone. A 'Quick Hear-Through' function focuses on voices.
Bluetooth Connectivity
Connect to Bluetooth devices by pairing. Ensure the device is within 1 meter for initial pairing. The product supports multi-pairing and can be re-paired if necessary. The effective communication range depends on obstructions and radio wave conditions.
Product Operation
Control music playback (play/pause, volume, track selection) and phone calls (answer, reject, end, call volume) via the touch panel on the left earcup. The product also offers ambience control to switch between noise-cancelling and hear-through modes.
Charging the Battery
Fully charge the battery before first use. Charging takes approximately 5.5 hours. During charging, Bluetooth connectivity is disabled. Use only the included USB charging cable.
Troubleshooting
This manual provides solutions for common issues such as power problems, pairing difficulties, sound issues (no sound, distortion, delay), charging failures, and noise-cancelling malfunctions. It also details how to perform a reset function.
Specifications
Key specifications include a 40 mm driver, frequency response of 5 to 45,000 Hz, Bluetooth version 5.0, and an operating time of up to 35 hours with Bluetooth and noise cancelling active.
Support
For global support and further assistance, visit the Audio-Technica website at www.at-globalsupport.com.
