Basic parameters:
Wireless Specification: V5.1
Supports wireless protocols:
L2CAP/A2DP/AVRCP is supported to receive stereo audio signals, and the upper and lower output operations of the audio transmitter can be controlled through the protocol;
Support HSP/HFP(Hands free profile), with Hands-free function, can carry out voice communication
Wireless transmission range: 10m
Audio Noise ratio: ≥ 90db
Battery capacity: 1200mAh
Built-in voltage: 3.7V
Normal volume playback: About 3H (varies depending on audio content and volume)
Speaker specification: **45mm * 2
Speaker Power: 4Ω/5W * 2
Frequency response: 120Hz-20KHz
Size: 68*68 * 180mm
Stand-alone Weight: 375g
Charging voltage: 5V/1000mA
Charging duration: About 3H

I. Functional features
1. Advanced wireless audio decoding chip is adopted to support wireless device connection;
2. Support FM radio, you can directly search for radio stations in the listening area;
3. The tone is soft, clear and dynamic, with distinct levels;
4. Direct reading TF card and USB flash disk;
5. The wireless receiving distance can be as long as 10 meters.
6. Support LINE IN audio input to provide you with computer speaker function. Can be directly connected to mobile phone/tablet computer/And TV Bluetooth matching to play music;
7. Support TWS function.
8. Tone control support knob + button.
9. No connection in wireless mode, shutdown in half an hour.