Bluetooth version: V4.1
Chipset: CSR8645
Cover charge port: Yes
Built-in Battery: 70mAh
Working range: 5-10 meters
Talk time: 3-5hours
Music time: 3-5hours
Standby time: 180hours
Charging time: 2-3hour
Colors: As photo show

Feature:
1.Micro USB charging port hidden
2.Multipoint
3.Volume up and down (short press "+" or "-" )
4.Song ''prev'' and ''next'' (long press "+" or "-" )
5.Play and pause (short press power key )
6.Receive and reject phone (short press power key receive, long press reject )
7.Battery in dicatedon for iPhone
8.Comfortable wearing
9.Last number redial

Notice: when you use this earphone, open you phone bluetooth first,then long press this earphone power key 5 seconds, search this earphone at your phone and Bluetooth pairing.

• Ergonomically designed - in-ear earbuds design for secure fit and premium sound.
• Full control: Made with the integrated three-button remote and microphone system which lets you have virtually complete control from the mic cable.
• Portable and Comfortable: Lightweight and small, convenient to put it in your pocket and use in anywhere .It comes with soft gasket in the earbuds and offers comfortable felling for your ears.
• With bluetooth 4.0 tech, the headphones ensure high-fidelity stereo music and clear speech within 10 meters. It offers hands free calling or music.
• About 3-5 hours talking,3-5 hours playing time,2-3 hours charging time, 180 hours standby with a single charge, so you have less time charging and more time doing.