This is the Cateye Omni 3 LED Headlight. Awesome triple-LED performance at an economical price. New Omni Directional Technology increases safety while three modes - rapid, flashing and constant - let you decide how flashy you want to be. Two AAA batteries provide up to 150 hours of run time. CatEye exclusive FlexTight bracket and included clothing clip allow you to mount the Omni 3 virtually anywhere you'd like. Features: Cycling headlight with 3 LEDs Three modes - rapid, flashing and constant Mount fits handlebars and other parts with a diameter of 22.2 - 32mm Includes clothing clip Specifications: Brightness: - Battery Type: AAA (2x) Run Time: 50 - 150 Hours Beam Color: White Color: Clear Weight: 42g (w/ Battery) Note: The factory-loaded battery life might be shorter than the specification above. Design and specifications are subject to change without notice.