Folding Bluetooth MP3 Headset with Microphone, Support FM Radio & TF Card Reader

1) Support Decoder mp3/WMA 2) FM radio frequency 76MHz-108MHz 3) Bluetooth specification V2.1 class 2 4) Supports bluetooth headset,handsfree 5) Talk time: up to 7 hours 6) Music playing time: up to 4 hours 7) Range up to 10 meters/32feet 8) Folding size: 95x70x20mm 9) Battery: 3.7V/260mAh rechargeable li-polymer 10) Power: input AC100-240V,DC5V MINI USB Plugs 11) RF output power: -6dBm to 4dBm 12) MP3 music listening time: about 4 hours 13) FM radio listening time: about 8 hours 14) Frequency: 2.402-2.480GHz