1、Bluetooth version: V2.1+EDR 
2.working frequency:20Hz-20KHz
3.Battery capacity:300mah
4.Rated voltage: DC 3V 
5.extra power: 3W 
6.music playing time:1.5-2hrs
7.talking time:1-2hrs
8.Signal to nosie radio:≥85db  
9.Distance: 10m
10.loundspeaker:40mm    
*With bluetooth function and connect with mobile to calling 
*Support Line-in and FM radio function
*Support TF card and play an music
*It can connect MP3,MP4,PC,Tablet,Mobile and so on