Helmet Interphone Headset 2km Interphone for helmet
Product Description
1. RF output power: 0.5W
2.Frequency point: 410MHz/411MHz/412MHz/413MHz (4 channels)
3. Modulation mode: FM(F3E)
4. Operation temperature: -10 C ~ 60 C
5. Battery : Li-polymer battery 1800mAh
6. Wireless PTT button working frequency: 315MHz
7. Antenna impedance: 50 OHM
8. Intercom unobstructed effective range: 2000m
9. Receiver sensitivity: -122dBm
10. Transmitter Max. frequency deviation: 5(wide) / 2.5(narrow) KHz
11. FM Radio frequency range: 87.5~108MHz
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