RETEVIS RT87 136-174MHz + 400-480MHz 128CHS Waterproof Dual Band DTMF Two Way Radio Handheld Walk...

1. Functions: CTCSS&DCS, monitoring function, emergency alarm, scanning, TOT (timeout timer), squelch, VOX, power saving, low battery prompt, etc.
2. IP67 waterproof and dustproof function
3. Frequency VHF: 136-174MHz, UHF: 400-480MHz
4. Channel capacity: 128
5. Working voltage: DC7.2V (lithium ion)
6. Frequency stability: +/-2.5ppm
7. Antenna impedance: 50 ohms
9. Dimensions (with battery, without antenna): 114x54x32mm
10. Weight (including battery and antenna): 194g

Transmitter:
1. Output power: H: less than or equal to 5W, L: less than or equal to 1W
2. Deviation: less than or equal to 5KHz/less than or equal to 2.5KHz
3. Adjacent channel power: less than or equal to -65dB / less than or equal to -60dB
4. Stray radiation: less than or equal to 7uW
5. Pre-emphasis characteristics: 6dB
6. Current: less than or equal to 1.6A
7. CTCSS-DCS deviation: 0.5KHz±0.2KHz, 0.4KHz±0.2KHz
8. Intermediary sensitivity: 5-12mV

Receiver:
1. RF sensitivity: -122dBm (12dB SINAD)
2. Audio power: 1W
3. Audio distortion: less than 5%
4. Barrier: greater than or equal to 85
5. Intermediary: greater than or equal to 60dB / greater than or equal to 55dB
6. Selectivity: greater than or equal to 65dB / greater than or equal to 60dB
7. Spurious suppression: greater than or equal to 60dB