1．Material:Plastic+ Electronic parts+silica gel
2．Color:White
3．Battery Capacity:Earbuds:50 MAH; Charging case: 350MAH
4．Charge time:Earbuds: 90 mins; Charging case: 3 hours
5．Playing time:2-3 hours
6．Standby Time:120 hours
7．Output power:5 mW
8．Charging Voltage:DC-5V
9．Bluetooth Version:Bluetooth v5.0 + EDR
10．Wireless Frequency Responce:20-20 KHz
11．Impedance:32Ω
12．Wireless range:10m (free space)
13．Profile Support:HSP/HFP/A2DP/AVRCP
14．Earbuds' size:1.66*0.6*4.1cm