KJB DD1206 Professional Digital Radio Frequency RF Bluetooth, GSM (Cellular), WiFi, Detector Hunter Sweeper Detects Bluetooth, Wi-Fi, DECT, GSM, and RF Weight 1.00 - Unit Size 2.75 x 4.75 x .75 Box Size 7 x 5 x 1.50 Operation up to 20 hours - Power 2xAAA Frequency range, Antenna #1: 40MHz  4Ghz. Antenna # 2: 2.44 GHz