Portable Two Way Radio Walkie Talkie Communication Device

Frequency range: VHF136-174MHz UHF400-520 (MHz)
Theoretical communication distance: 5 (km)
Communication type: No card
Frequency range: 136-174/400-520MHZ (MHz)
RF output power: 5/8 (W)
Number of channels: 128 (number)
Theoretical communication distance: 5-10 (km)
Working voltage: 7.4 (V)
Frequency stability: 5 (ppm)
Battery type: Lithium battery
Theoretical battery life: 2500 (h)
Monitoring function: Yes
Dimensions: 110*58*32 (without antenna) (mm)