B2 Specifications:
- Bluetooth ver.: V2.1+EDR (Backward compatible with V1.1/V1.2)
- Operation Range: Up to 10 meters
- Support System: Windows 98/ME/2000/XP/VISTA,*Mac
- Sensitivity: -89 dBM at 0.1%BER
- Frequency Range: 2.402-2.480 GHz / 79 Channel FHSS
- Power Supply: Wall charger
- Antenna: Built-in one chip antenna
- Continuous Talk Time: 4 Hours
- Stand-by Time: 120 Hours
- Weight: 12g
- Charging Voltage: DC5.0~5.3V
- Charging Time: 2 Hours
- Certifications: CE FCC and BQB
- USB Interface: USB2.0/1 .1
- Operating Temperature: -10 C~55 C
- Storage Temperature: -10 C~45 C
- Audio Caller ID: TTS Technology