1 Bluetooth V4.0 + EDR
2 Connect with Bluetooth-enabled mobile phones / tablet / PC / Ipod Touch etc so to enjoy your music without the wires
3 Button function:V- /next music/V+/previous music/pause/play
4 Receiver distance:10m/360°
5 Battery:Chargeable 3.7V/250mAh lithium-ion battery
6 Charging time:Less than 3 hours
7 Charge via micro usb lead
8 LINE IN 3.5 audio jack can be connected when you prefer connected play
9 Only power-saving mode, low power consumption design, extraordinary 180 hours standby, built-in lithium battery 10 lasts about 8 hours
11 Take voice calls - music playback mode automatically switches to voice calls
12 Music play functions and volume function built into earcups for easy access
13 Colour: Black, red, white 
Collapsible

Speaker parameter:
Speaker diameter: φ 40mm
Impedance: 32Ω
S.P.L: 106dB S.P.L. at 1KHz
Rated power: 10mWF

requency response: 20Hz-20,000Hz