1. Use for detecting spy camera 2. Wild-range: include 900, 1200, 1300MHz and 2.4GHz 3. Receiving sensertivity: 500MHz ~ 3GHz 4. Coverage range: 3 meter a radius 5. Signal O/P: red light LED flash 6. Battery: 3V. LR-44 x 2pcs 7. Outlook: keychain type are available,customer designs are welcome Function: 1. Detective Area: A radius of 3 meter can precisely detect wireless signal of 900/12001300/2400 MHz. 2. Red LED Flash: The flashing frequency will increase when approaching to the target. 3. Touch-tone Design: Professional RF Detective design press the key only when detection is needed. Such a function can both savepower and prevent interferences of mobile phone's signal. 4. Attach a Dey Ring: Men can wear the key ring and women can wear it on the bag or wear it as a decoration. Application: 1. Pubilc place,dressing rooms,bathrooms or lavatories. 2. Hotel,dormitories,rooms or offices. 3. Any place needs privacy......