1.BluetoothV.2.1+EDR . 2. Earphone connecting time:2-3 hours Waiting time:150 hours 3.PAD and phone bluetooth equipment inside 10m. 4.Operating frequency range:2.4GHz-2.480GHz 5. Support IPHONE and Android phone mobile music 6.Headphone,earphone,MP3 7.Stereo sound