Generic Bluetooth Stereo Audio Wireless Headset Headphone Compatible for Cellphone Pc Pad Earphone Color White Bluetooth version v2.1+EDR Support profiles: Headset, Hands free, AVRCP, A2DP Talk time: Up to 11 hours Music playing time: Up to 10 hours Standby time: Up to 250 hours Charging time: About 3 hours Charging via 2.5mm DC jack. Effective range:10 meters Class 2 Impedance: 32 ohms Sensitivity: 115dB +/- 3dB Frquency Response: 20Hz - 20KHz Support profiles: Headset, Hands free, AVRCP, A2DP Charge input voltage: DC 5V and call-forwarding function Remote control the function of PAUSE/PLAY Adding and connecting your bluethooth devices immediately Supports: iPhone4 4s ,iPhone5, iPad2 3 4 5,iPad mini, HTC One S,Blackberry,Samsung GALAXY Nexus,Samsung GALAXY Note II,NOKIA Lumia, HTC One X , Samsung S2 S3, Nokia, Motorola, LG, HTC , Sony Ericson, PDA, Tablet PC, PC, laptop, PS3 and any Bluetooth enabled device. Supports: NOKIA Lumia, HTC One X , Samsung S2 S3, Nokia, Motorola, LG, HTC , Sony Ericson, PDA, Tablet PC, PC, laptop, PS3 and any Bluetooth enabled device.