1.Bluetooth Specification: ISSC V3.0+EDR
2.Bluetooth Profiles Supported: HSP, HFP, A2DP and AVRCP
3.Operating Distance:10 meters Class II
4.Driver Unit: 30mm
5.Speaker Impedance: 37 ± 15%
6.Speaker Frequency Responce: 20HZ - 30,000Hz
7.Mic Dimension: 4mm 
8.Mic Sensitivity: -40dB ± 3 
9.Mic Impedance: 2.2
10.Rechargeable 180 MAH Li-Polymer battery
11.Talk Time: Up to 8 hours
12.Music Playing Time: Up to 5.5 hours
13.Standby Time: Up to 180 hours
14.Charging Time: About 2.5 hours
15.Charge Input Voltage: DC 5V
16.Compatible with Apple iPad, Mac System, iPhone 3, 3GS, 4, PC (need bluetooth dongle)
17.Weight: 114g 18.Battery Capacity:180MA