BaoFeng UV-82 5W Dual Band Two-Way Radio FM VHF UHF Handhd Walkie Talkie 1. Mini body, compact and portable to carry in pocket. 2. Dual-Band Display, Dual Frequency Display, Dual-Standby. 3. Flashlight lighting function. 4. U-U, V-V, U-V working function. 5. Chann scan table editing function (ly sect chann to participate in scanning) 6. VOX voice control function 7. parameter: Frequency Range: FM:65-108MHz; VHF:136.000-174.00MHz; UHF: 400-480.00MHz Number of channs: 128 Operating Voltage: DC 7.2V 2800MAH lithium battery Step frequency: 2.5/6.25/10/12.5/20/25KHz Frequency stability: +/- 2.5PPM Antenna: 50Ohm Size: (110mm x 58mm x 32mm) (height x width x thickness) Current: Less than or equal to 1.4A (4W) Modulation sensitivity: 8-12mV Modulation distortion: Less than 10% Modulation limit: Broadband Less than 5KHz, narrow band Less than 2.5KHz Sub-audio/digital sub-audio frequency offset: 0.75KHz+/-50Hz, 0.37KHz+/-30Hz Modulation characteristics: 6dB / frequency increase per multiple Reference sensitivity: -122dBm (12dB SINAD) Audio power: 1W Audio distortion: less than 10% Modulation receiving bandwidth: 5K Clutter suppression: greater or equal to 65dB Adjacent chann sectivity (wide band, narrow band): greater or equal to 65dB, greater or equal to 60dB Intermodulation (broadband, narrow band): greater or equal to 60dB, greater or equal to 55dB Blocking: greater or equal to 85dB Spreading distance range: about 5-10 km in open area, about 3-5 km in obstruction 8. Package: main machine x 1 antenna x 1 battery x 1 charger x 1 bt clip x 1 hand lanyard x 1 manual x 1