QLA BR750S is a Bluetooth stereo headset with stylish and trendy design, as well as advanced wireless technology. It supports A2DP and AVRCP, allowing pairing with Bluetooth adapters, smartphones, MP3 players, and computers. It also features music and call switching, hands-free mode, and compatibility with network communication software such as Skype, MSN Messenger, and Yahoo! Messenger.
This manual begins with safety warnings, emphasizing the risk of permanent hearing damage from excessive volume and advising use in compliance with local laws and safe environments. It also describes the earphone’s compact design and the Bluetooth functions it supports, such as A2DP audio streaming and AVRCP remote control.
The guide then explains how to power on the device, enter pairing mode, connect to a phone (selecting QLA BR750S and entering PIN 0000), and use the multifunction button for calls, playback and volume control. The specifications section lists Bluetooth version, battery capacity, charging details, operating temperature and other key parameters. This manual is written in Chinese.
| Bluetooth version | y2.1+EDR class 2 |
|---|---|
| Battery capacity | 80 mAh Li‑Polymer |
| Input AC | 110‑240 V, 50‑60 Hz, 100 mA |
| Output DC (charging) | 5.5 V, 400 mA |
| Charging time | ≈ 1 hour (max 4.5 h) |
Keep the volume at the lowest level and avoid prolonged use at high volume; reduce volume whenever you notice ringing or discomfort.
Charging takes about one hour (maximum up to 4.5 hours).