Bluetooth protocol: 4.2
Channel: Stereo
How to use: Earbuds
Color: black, white, purple, red
size：60cm
Bluetooth button description
1. Power on/off/telephone/pause/play
2. Volume plus button / next button
3. Volume down button / previous song
4. Microphone hole
5. USB charging port
Bluetooth parameter description
Frequency range: 20-20KHZ
Sensitivity: 95DM
Impedance: 32 ohms
Speaker size: 32mm
Transmission distance: CLASSII
Operating range: 10M
Charging time: 2H
Length of use: 6-8H (70% power)
Battery: 180mA polymer lithium battery
Accessories: data line + manual
Bluetooth protocol: 4.2
Bluetooth search name: BT-01
