◆Bluetooth solutions：Realtek
◆Bluetooth version:5.0+EDR                                                                                                               ◆Waterproof : IPX5
◆Supported Profile : A2DP,AVRCP,HSP,HFP
◆Earphone capacity : 55mAh*2 rechargeable  Lithium battery
◆Effective distance: 15M
◆Music time Single : About 3.5-4hours                                                                                               
◆Music time Twins : About 3.5-4hours                                                                                                   
◆Total standy time: 200H                                                                                                                     
◆Charging time: about 1.5H
Charging box  Specification :                                                                                                                          ◆Battery capacity of Charging bin : 500mAh                                                                                   
◆Rechargebal earphone : About 3 times