Specifications:
1) The battery 3.7 V / 520 mah lithium-ion polymer battery
2 )Calls (bluetooth) about 24 hours
3 )Music (bluetooth) about 24 hours
4 )Charging time: 2 hours
5 )Frequency response: 20-20 000 hz
6 )Horn:32 ohm
7) Horn diameter:40 mm
8 )Bluetooth frequency: 2402 MHZ ~ 2480 MHZ
9) Standby time: up to 250 hours
10) Main chip: CSRBC57F687A05 (BlueCore5 - Audio ROM
12 )Output power: Class II
13)White/black /red
14)Bluetooth specification: CSR4.0+EDR
15)Bluetooth profilessupported: HFP, HSP, A2DP and AVRCP
16)Operating distance: 30meters Class 2
 
 Features:
 
1) Bluetooth headset, head type wireless bluetooth headset, high quality, stereo.
 
2 memory pairing + echo cancellation, music/speech automatic switching. Can be pairing and connection to all have bluetooth phone
 
3) clear dialogue, anytime, anywhere, enjoy your wireless free! Super easy super convenient feeling! Super quality ultra smooth enjoy!