Key specifications / Special Features:                                                            
1.Bluetooth 2.0+EDR , Class 2, 10 Meters
2.Bluetooth Profile Supported: HSP, HFP, OPP Profiles
3.Operating Frequency Band : 2.402 to 2.480GHz unlicensed ISM band
4.Rechargeable Polymer Battery: 3.7V DC, 650mAH, (#BL-5B compatible)
5.AC/DC Charger:  DC 5 to 6 V, 450 mA
6.Normal Charge Time:  3 hrs.(approx.)
7.Talk Time: 15~16 hours
8.Standby Time:  600 hrs
9.Dimension: 115.5mm(L) x 45mm(W) x 15mm(H)
10.Weight: 83g. (without battery); ***g(with battery)
11.Caller Name/Number Speaker Indentification
12.(Supports Multiple Languages)
13.Phonebook Sync Enable
14.Advanced Built-in Microphone and Speaker
15.Echo Cancellation and Noise Suppression
16.Full Duplex Sound Quality
17.Supports Voice Dial Activatio, Redial & Call Rejecti
18.support Multiple paired. (Up to 8 Bluetooth Phone can be paired)
19.with TTS & DSP function