epex Bluetooth Headphones CSR 4.1 with one year manufacturer's warranty
Voice prompt: Incoming call report, acoustic sound
Multipoint: Connect with 2 phones and use at the same time
Transmission range: 15m 
Radio frequency: 2.4GHz 
Music Time: about 6 hours
Talking Time: about 10 hours
Standby Time: about 200 hours
Translate freely in Chineese/English by pressing volume up button twice for a voice prompt