Main Features - CTCSS / CDCSS - VOX Function - Voice Prompt - PC Programming - Emergency Alarm - Desktop charger - Battery Save - Low Voltage Alert - Time-out Timer - Flashlight General Frequency Range (Single band) UHF 420-450MHz Channel Capacity 16 Channel Spacing 25KHz Operated Voltage DC 3.7 V Battery 1500MAh Li-ion Battery Life (5-5-90 duty cycle) About 8 hours Frequency Stability ±2.5ppm Operated Temperature -30°c-+60°c Antenna Impedance 50Ω Dimensions (L×W×H) (with battery, without antenna) 115×60×33 mm (without antenna) Weight (with battery/antenna) 180g Communication Range about 6km Receiver Sensitivity (12dB SINAD) ≤0.20 uV Selectivity 55dB/50dB Intermodulation ≥65dB Adjacent Channel Selectivity ≥60dB Spurious Response ≥60dB FM Noise 45dB/40dB Audio Power Output 1000mW Audio Distortion ≤5% Standby Current 15mA Transmitter RF Power Output