RavTech (TM) Sensitive GPS Tracker Hidden Camera RF Bug Detector Finder Use this device is easy to find out wireless and wired camera, GPS tracker, mobile phones and jammers. Dual mode detector can detect and locate any wired, wireless hidden camera and RF device with working frequency between 1MHz - 6.5 GHz, including GSM, VHF, UHF bugs,trackers. It is equipped With auto-detecting function,once it detect bugs,the led will flash. Built-in rechargeable Li-battery can ensure a non-stopping detection for 5 hours. Search AOBILE for more choices!