Movo Photo MV-B100 Motorized Static-Charged Sensor Cleaning Brush with 4 Bright LED's for DSLR's, Mirrorless Cameras & Lenses Ultrasonic motor spins the brush which static charges the brush fibers so they they easilly remove dust and dirt from Camera Sensors, Lenses and sensitive electronics Features low and high power modes Equipped with 4 super-bright LED's which illuminate the camera sensor to reveal dust particles Ultrasoft brush fibers are safe for all camera sensors and glass optics Operates on 2 "AAA" batteries (not included)