QLA BR579 Noise Cancelling Bluetooth Earphone User Manual, this manual introduces the use of the earphone, as well as precautions, including that high volume may cause permanent damage to hearing, it is recommended to adjust the volume to medium volume, avoid using the earphone in activities that require full attention such as driving, riding, and operating machinery
This manual provides safety precautions, product features, and step‑by‑step instructions for using the QLA BR579 anti‑noise Bluetooth earphone. It covers proper volume settings, charging procedures, and environmental restrictions to prevent hearing damage and product hazards.
The guide also explains how to pair the earphone with a Bluetooth‑enabled device, operate call functions, and troubleshoot common connection issues. Technical specifications such as battery capacity, Bluetooth version, and dimensions are listed for reference. This manual is written in Chinese.
| Bluetooth version | y2.1+EDR class 2 |
|---|---|
| Battery | 80 mAh Li‑Polymer |
| Input voltage | 110‑240 V, 50‑60 Hz, 100 mA |
| Output current | 400 mA |
| Dimensions / Weight | 120 mm × 22 mm × 10 mm, ~18 g |
| Charging time | 1.5‑2 hours (max) |
| Operating temperature | -10 °C (lower limit) |
| Manufacture year / Country | 2010, China |
Ensure the earphones are charged and turned on, enable Bluetooth on the phone, search for the device name QLA BR579, and follow the on‑screen prompts to pair.