2.4G wirelss headphone 1.bluetooth v3.0 RF 2.4G 2.MP3 player, support max TF 32G 3.stereo,strong bass sound 4.pass CE ... * Battery,rechargeable 460mAh Li-ion battery* Weight,77G * Measurement,15X15X6.5mm * Effective range, 10m *Decoder supported,MP3*SNR,90dB *THD: <0 ... *Port: Built-in USB (mini-B) *RF: 2.4GHz GFSK*Accessories: 2.5-3.5mm audio cable; USB cable; User manual; USB adaptor ...