Supersonic Bluetooth Rechargeable Headphone with Portable speaker and FM/MP3 Player- Black

* Clear, rich stereo music* Wireless bluetooth headphones* Streams music wirelessly from most bluetooth enabled devices such as iPhone, iPad, iPod, smart phones, netooks, Android tablets, MP3 players and more* Seamlessly switch from music to smartphone calls* Aux input: gives you the option to connect non-bluetooth portable devices* Built-in microphone allows you to talk when you make a phone call* Built-in micro USB input for charging * Comfortable adjustable, forking design* Adjustable, soft head band* Music volume control directly on the headphones* Built-in rechargeable battery* Bluetooth: V3.0 + EDR*Duration: Music 4 hours talk 10 hours* Standby time: 125 hours (based on volune at 80% level)* Charging input voltabe: DC5V* Charge capacity: 300MAH* Charge current: 50--650MA* Headset speaker impedance: 32 ohm* Frequency range: 130-18KHZ* Headset mode distortion degree: <1%* S/N ratio: <85dB* Transmission distance: <10 M* Includes: Headphones, AUX cable, USB cable, pouch and manual