This radio is helpful for the following circumstances: security guard, supermarket connection, construction area indication. It is also helpful for field survival, biking and hiking.
It is very easy to use these. All you need is to turn these two to the same channel (16 channnel to be chosen), push a button, and you can hear from your mate.
*16 channel
*1500mAh Li-ion battery
*50 CTCSS/105 CDCSS *VOX Function
*Voice Prompt
*PC Programming
*Emergency Alarm
*Intelligent Charging
*Battery Save
*Low Voltage Alert
*Time-out Timer
*FlashLight

Specifications:
Channel Capacity: 16
Channel Spacing: 25KHz
Operated Voltage: 3.7V
Battery: 1500MAh Li-ion
Battery Life: About 8 hours
Frequency Stability: ±2.5ppm
Operated Temperature: -30°c-+60°c
Antenna Impedance: 50Ω
Communication Range: about 2-4km

Transmitter:
RF Power Output: 3W
Modulation: F3E
Spurious Emission: ≤65dB
FM Noise: ≤-45dB(W) ≤-40dB (N)
Audio Distortion: ≤5%
Transmitting Current: ≤1.3A

Receiver:
Sensitivity (12dB SINAD): ≤0.20 uV
Selectivity: 55dB/50dB
Intermodulation: ≥65dB
Adjacent Channel Selectivity: ≥60dB
Spurious Response: ≥60dB
Audio Power Output: 1000mW
Dimensions (L×W×H) (with battery, without antenna): 10×50×32 mm
Weight (with battery/antenna): 198g