1.pinhole lens detector 2.1MHz-6.5GHz frequencies 3.6 bright ... 1MHz to 6.5GHz for all RF frequency include GSM , WIFI, Bluetooth, FM, VHF, UHF, 900/1200/2400 wireless ... . Adjustable RF signal strength detect fuction. 11. Adjustable lens detector mode, with different flashing frequency. 12. Built in 500mA ... up to 6 Hours for lens detector and up to 15Hours for RF detector. 13.Easy to operate and small ...