Features: 50 CTCSS/105 CDCSS VOX Function Voice Prompt PC Programming Emergency Alarm Intelligent Charging Battery Save Low Voltage Alert Time-out Timer Torch Light Specifications: General Frequency Range: 400-470MHz Channel Capacity: 16 Operated Voltage: 3.7V Battery Capacity: 1500mAh Li-ion Battery Life(5-5-90 duty cycle): About 10hours Frequency Stability: ±2.5ppm Operated Temperature: -20°c-+60°c Antenna Impedance: 50 Ω Dimensions: 97.36mm ×57.2mm ×29.3mm Transmitter RF Power Output: ≤5W Modulation: F3E Spurious Emission: 65dB FM Noise: 45dB(W)/42dB (N) Audio Distortion: ≤5% Transmitting Current: 1.2A Receiver Sensitivity(12dB SINAD): ≥0.2μv Inter-modulation: ≥65dB Adjacent Channel Selectivity: ≥60dB Spurious Response: ≥60dB FM Noise: 45dB(W)/42dB(N) Audio Distortion: ≤5% Package Contain: 2× UHF:400-470MHz Radio 2× 3.7V 1500mAh Li-ion Battery Pack 2× SMA-Female Dual Band Antenna 2× Belt Clip 2× ENG Manual 2× Desktop Charger ( 100V ~ 240V ) with Correct Adapter for your Country 2× Wrist Strap 2× Earpiece