VHF frequency band (receiving/transmitting): 136-174MHZ. UHF frequency band (receiving/transmitting): 400-480MHZ. Aviation frequency band (receiving): 109-136MHZ. Dual-mode volume adjustment (mechanical and electronic).Three-speed power adjustment (low 1W, medium 5W, high 10-15W). Full dot matrix graphic LCD liquid crystal display. The motherboard chip is fully upgraded, more power saving, longer standby time. Can be used with a split-screen keyboard display unit (KDU) for convenient operation. Keypad display unit (KDU) function: Separate the LCD screen and keyboard of PRC152, you can directly use KDU to operate and set up PRC 152. Due to the difference between the shooting light and the display, there may be a slight color difference between the picture and the actual item. Please refer to the actual product. Please feel free to contact me. Thank you for your patience. We are a professional worldwide wholesale company. High product quality, reasonable prices, excellent customer service and a reliable credit standing is our tenet. We will do our best to solve your problem as soon as possible. Thank you for your visit and welcome back.