... * 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 ... will show you all devices scanned while seeking finished. new 2.4G headphone with bluetooth, mp3 player E68