Bluetooth earbuds with charging box Wireless Version: V5.0
Speaker impedance: 32Ω
Microphones sensitivity:42Db
Frequency:2.40GHZ
Battery Capacity:40MAH/300MAH
Input:DC5V
Transmission Distance:12M
Speaker:Φ9mm*2
Impedance:32Ω
Playing time:1.5-2hours
Charging time:1-2hours
Function: Bluetooth, answer the phone, single/bina mode ,mode free to choose to play music