Features: Equipped with 8 infrared LEDs, delivers more light to improve the reflection, bright enough for you to spot a hidden bug or camera lens, no matter if it is plugged in. Easy to use, press the button, holding the finder close to your eye with the LEDs pointed away from you, and use the detector to sweep your room slowly, any hidden bugs or camera lens will be reflected. Built-in rechargeable lithium battery enables the detector to work for about 9 to 10 hours continuously, and it can be charged by any USB devices. Vibration alarm feature for anti-theft, take it with you for security check on a vacation or business trip. The pocket-sized camera detector is lightweight and portable, easy to carry around.