Folding headset with stereo wireless headset

Bluetooth version: Bluetooth4.2
FM frequency: 87-108MHZ
USB charging: DC 5v IN
Radio frequency: 2.401-2.480GHz
Wireless distance: 10m
Frequency response: 20KHz -20KHz|
Output Power: 35mW
Signal to noise ratio: 88Db
Supporting devices: mobile phone/ iPod /
Charging time: within 2 hours
MP4/ MP3/ CD / notebook, etc.