High Sensitivity & Digital Chip Controller: the fisrt to the tenth LED light to display the signal intensity, when the first to tenth LED lights flash, it means the device reaches maximum sensitivity, built in digital control chip allow you to the button to adjust the sensitivity, with memory function to records your last time settings, next time use you can quickly go to last sensitivity parameters without resetting. Long Working Time: Built in low power consumption , and 1000mah Lithium battery allows the device work continuously for 15 hours, the recharge function allows you to charge it quickly when the battery is low. RF Detector: Detect Hidden WiFi cameras, cell phone bugs, wireless listening device and GPS tracker, built in high sensitive digital Micro-type controller to control the RF signal sensitivity in 6 levels, simply the button to adjust it. Compact and Portable: Compact and light weighted. You can take it anywhere you want. A necessity for your travel and staying in hotel. Easy to use, with audible buzzer alarm, the closer the detector to transmitting bug device, the louder and faster the alarm becomes. Continuously adjust the detection sensitivity from high to low to shorten the detection range in order to pinpoint device. Widely Use: Check broad scenarios, like hotel, bathroom, dressing room, government organs, business negotiation, school invigilation, places of entertainment, workshop, industrial facilities, etc. Wherever and whenever you don't trust surroundings, the detector can help you feel secure. It's a heart-warming gift for business people, politicians, girlfriends, lovers, college students, children and . Detect Dynamic Range: 73DB Detection Sensitivity: Lower than 0.03mw Alarm: Sound alarm with LED flashes Sound Alarm Method: As close to the object the alarm sound LED Indication Mode: 10 level LED lighting indication Battery: 1000mah 3.7V Lithium battery Power Supply: DC 5V 1000mah Working Current: 30mA Working Time: 12 - 15 hours Colour:As Shown Material:Aluminum Alloy Package Contents: 1 * GPS Tracker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.