Transmission range: ≤10 meters
Function: call function, voice control, music support, multi-point connection
Bluetooth protocol: 4.0
Frequency response range: 20-20000Hz
Talk time: 2-3 hours
Standby time: about 180 hours
Soundtrack; stereo
How to use: hanging neck
Single or binaural: bilateral stereo
Product length 60cm
Color box packaging, packaging size: 19.5 * 9 * 2cm