General SpecificationsFrequency Range UHF 400-470MHzRF Rated Power ¡Ü 5WChannel Capacity 16Channel Spacing 25KHzOperated Voltage 3.7 VBattery 1500MAh Li-ionBattery Life About 8 hoursFrequency Stability ¡À2.5ppmOperated Temperature -30¡ãc - +60¡ãcAntenna Impedance 50¦¸Dimensions (L¡ÁW¡ÁH) (with battery，without antenna) 110¡Á50¡Á32 mmWeight (with battery/antenna) 198gCommunication Range about 2-4kmRF Power Output 3WModulation F 3ESpurious Emission ¡Ü65dBFM Noise ¡Ü-45dB(W) ¡Ü-40dB (N)Audio Distortion ¡Ü5%Transmitting Current¡Ü1.3ASensitivity (12dB SINAD)¡Ü0.20 uVSelectivity 55dB/50dBInermodulation ¡Ý65dBAdjacent Channel Selectivity ¡Ý60dBSpurious Response ¡Ý60dBAudio Power Output 1000mWPackage include: 1¡Á Portable radio1¡Á Inductively loaded antenna1¡Á Li-ion battery pack1¡Á Desktop charger AS GIFT£¨ONLY US PLUG£©1¡Á Belt clip1¡Á Handstrap1¡Á User's manual