Features: Fashion mini. Multi-colored, small and exquisite. With LED glare flashlight. Ultra long propagation distance. Small size, large effect, 1-5KM town, 3-8KM in the suburbs, 1-18 floors. Clear intercom. Professional audio processing technology makes it easy to achieve clear intercom. Digital signal processing system. 16 memory channels, 50 sub-audio QT, 210 digital sub-audio DQT. Excellent quality to meet the needs of different industries. Transportation logistics, property security, hotel catering, construction sites, travel treks, beauty salons, radio enthusiasts, public security firefighting. Specifications: 1. General specifications: Frequency range: UHF400-470MHz Storage channel: 16 groups Working voltage: DC3.7V Battery capacity: 1800mAh Working temperature: -20 °C ~ 50 °C Working mode: Same frequency, simplex Antenna impedance: 50 ohms Frequency stability: ±2.5ppm 2. Transmitting power: Output power: ≤5W Modulation sensitivity: 8-12mV Stray power: ≤7.5uW Leading power: ≤-65dB/≤-60dB Emission current: ≤1.5A Signal to noise ratio (width / narrow): ≥ -45dB / ≥ -40dB Maximum frequency offset (width / narrow) ≤ 5KHz / ≤ 2.5KHz Sub-audio/digital sub-audio bias (broadband/narrowband): 0.7±0.1KHz/0.4±0.1KHz 3. Received power: Audio power: ≥0.37W Audio distortion: