Bluetooth Earpiece BT V4.1, dual microphone and PTT function, with microphone noise reduction
Dimensions | 101*62*28mm |
Weight | about 21 g |
Color | black |
PTT Key | available |
Microphone Sensitivity | -42±3dB@1kHz 2.0V 2.2K,0dB=1V/Pa |
Speaker Impedance | 32Ω±15%@1kHz |
Speaker Frequency Response | 105±3dB@1kHz at 0.126V |
Communication Protocol | Bluetooth V4.1 |
BT Range | 10m |
Certification | CE、FCC |
Charging Time | about 2.5H |
Operating Temperature | -15 to 45℃ |
Storage Temperature | -20 to 60℃ |