RETEVIS RT55 5W 156.000-161.450MHz+156.050-163.425MHz Waterproof Two Way Radio Handheld Walkie Talkie(Black)

1. Waterproof protection: IP67 2. Floating on water: the transceiver can float on water after falling into the water 3. Vibration drainage function 4. Double monitoring/triple monitoring 5. Functions: monitoring, volume mute, automatic backlight, lock, scan, energy saving, adjustable squelch, call channel programming, etc. 6. Frequency range: TX: 156.000-161.450MHz, RX: 156.050-163.425MHz 7. Transmission type: FM (16K0G3E) 8. Frequency stability: +/-10PPM 9. Battery pack: 1200mAh lithium ion battery (DC7.4V) 10. Operating temperature range: -20 to 55 degrees Celsius 11. Antenna impedance: 50 ohms 12. Size: 140x65x41mm 13. Weight: 288g Transmitter: 1. Output power: 5W / 1W 2. Frequency deviation: +/-5kHz 3. Adjacent channel power: greater than or equal to 70dB 4. Audio harmonic distortion: less than or equal to 10% Receiver: 1. Hum and noise: greater than or equal to 40dB 2. Spurious response: greater than or equal to 70dB 3. Intermodulation suppression: greater than or equal to 68dB 4. Audio output power: greater than or equal to 0.5W (10%)