Bluetooth stereo headphones with built-in microphone
Up to 500 hours of standby time and 6 hours of listening time
Automatically mutes your music in case of incoming calls
Multifunction button, volume control and low battery indication
Can also be used as wired headset - includes 3.5 mm audio cable
Comfortable ear cushions and adjustable headband

Specifications
Interface: Bluetooth v.4.2
RF transmit power: 9 dBm
RF receive sensitivity: -85 dBm
Supported profiles: HSP, HFP, A2DP and AVRCP
Rechargeable 250 mAh Li-ion battery
Recharging time: up to 2 hrs
Operation distance: up to 10 m in the open air
Speakers frequency response: 20 Hz - 20000 Hz
Signal to noise ratio: > 83 dB
Impedance: 32 Ohm, 105 dB sensitivity
Microphone: 6 mm, -42 dB sensitivity
Operating power: 3.7 VDC, up to 40 mA
Dimensions: 175 x 177 x 78 mm (L x W x D)
USB charging cable length: 0.5 m
Net weight: 150 g

System requirements
Bluetooth enabled mobile phone, PDA, laptop or PC