1.This is one piece bluetooth headphone・ design for single ear. Easy to carry.  A key design・ a button to the realization of all operations・ simplify the steps easy to use. More conveniently answer calls .<br />2.Compatible with Bluetooth digital devices. Support IOS・ Android system・ wireless bluetooth earphone headphone headset For Iphone・ for Samsung・ for HTC・ for Sony phone.<br />3.Have handsfree call phone and listen music function. Freely switches between music and calls. You can play・ skip and pause music・ control volume and pick up call calls. Waiting for a call・ no need to disconnect.  your Bluetooth headset the music will go automatically to pause when an incoming call comes in・ will go back to music automatically when you hang up.<br />4.Battery supply:  Built-in rechargeable lithium battery.<br />5.Wireless Frequency:  2.4~2.8GHz.<br />6.Bluetooth Chip: CSR chipset.<br />7.Package Include: 1 piece * Bluetooth headphone・ 1 piece * Ear hook ・ 1 piece * USB charge cable・ 1 piece * User manual .