QLA BR850S Bluetooth Stereo Headset User Manual, including use precautions, product introduction, usage methods, etc.
This manual introduces the QLA BR850S Bluetooth stereo earphone, describing its design, key functions, and supported Bluetooth profiles. It includes safety warnings such as avoiding excessive volume to prevent permanent hearing damage.
The guide explains how to power on the device, pair it with a phone or other Bluetooth-enabled equipment, use the multifunction button for calls, adjust volume, and charge the earphone. Technical specifications, including battery capacity, charging time, Bluetooth version, and operating temperature, are listed at the end. This manual is written in Chinese.
| Bluetooth version | y2.1+EDR class 2 |
|---|---|
| Battery capacity | 80mAh Li‑Polymer |
| Charging voltage / current | 5V 400mA |
| Charging time | ≈1.5 hours |
| Talk time | ≈4 hours |
| Standby time | ≈80 hours |
| Operating temperature range | -10 °C to 0 °C |
| Manufacture year | 2010 |
| Country of origin | China |
The charging time is up to about 1.5 hours.
It uses an 80 mAh Li‑Polymer battery.
The device supports Bluetooth y2.1+EDR class 2.
The earphone can operate between –10 °C and 0 °C.