Transmission range: 10 meters
Function: voice control, call function, music support, multi-point connection
Bluetooth protocol: 5.0
Channel: stereo
How to use: earplug style
Single or dual ear: bilateral stereo
Color: V1 black

Bluetooth protocol: HFP/A2DP/AVRCP
Working frequency: 2.402GHz-2.480GHz
Wireless frequency: 2.4GHZ
Transmission power: CLASS 2
Temperature range: -20-60℃
Speaker size and impedance: ⊙8mm, 32Ω
Audio signal to noise ratio S/N: ≥100dB
Headphone battery: single side 50mAH, battery model 581013 polymer lithium battery
Charging box battery: 300mAH, battery model 602030 plus protection board polymer lithium battery
Headphone charging current/voltage: 60mA / DC 4.75-5.25V
Headphone charging time: about 1 hour
Charging time of the charging box: about 2 hours
Listening time: about 5 hours (the actual use time depends on the type of song and volume requirements, 80% volume)
Working current: ≤13mA
Charging port: USB