Specifications/Special Features: Dual watch function FM radio 1750 call tone(Optional) 100 channels 50 CTCSS and 208 DCS Switch power between high, medium, and low Monitor and scan function Display channel and frequency mode Low power alarm Keypad and LCD backlight function Earphone, microphone, and automatic charger jack Battery: 1,500mAh lithium ion battery pack (rechargeable) Frequency range: VHF: 136 to 174MHz UHF: 400 to 470MHz Transmitter: Power output: ≥4/2/1W Emission current: 1.5A (4W) Modulation mode: 16KΦF3E and 11KΦF3E Maximum frequency deviation: <5K/<2.5kHz Radiation response: <7μW Modulation sensitivity: 12mV Modulation distortion: <5% Receiver: Sensitivity: -122dBm (12dB SINAD) Audio output power: 500mW Audio distortion: <10% Blocking: ≥85dB Inter-modulation: ≥60dB, ≥55dB Adjacent channel selectivity: ≥65dB, ≥60dB Spurious response rejection: ≥65dB Dimensions: 9.0 x 5.5 x 3.2cm Weight: 0.70kg