Specification:
1.Bluetooth Version: V5.0
2.Brand :Wiresto
3.Model :TWS F9
4..Bluetooth ProtocolHFP/HSP/A2DP/AVRCP
5. working time per charge
6..Battery Capacity About: 2200mAh and backup 25hours. Stand by 120hours.
7.Bluetooth Distance About:10 Meters
8.Water resistance.
9.Connection Method: Single/Double Free To Use
10.Color: Black
11.Charging Time :1-2 hours