Brand：Xu Cai 518
Blueetooth Version：V3.0+EDR
Frequency Range ：2.4GHZ
Working Range ：10 metre
Charging voltage: DC5V 150mAh
Talk time: up to 4 hours
 Music Playing Time: up to 4 hours
Stand by time : Up to 110 hours
Item Dimensions : 55.5MM*18MM*12MM