LED high power highlight XPE 3W LED of 250 lumen; [headlights]: flashing - slow flashing - always on - off; [horn]: 4 differ tone random; [battery]: 3 AAA batteries (not included); Weigh approx: 95.2 g / Gross Weight: 132.3 g [ Dimensions]: length 11 front width 55 rear width 3 head thickness 3.8 tail thickness 1.7CM; [Features]: 1. This product well structural ergonomic design and quality made. 2. Applied 3 W high power white LED lamp crystal-grade acrylic-grade lens. Shine brightness range 30-50 meters at night the passive viewing angle is as wide as 220 3. Product seal cover silica gel dust cover water resistant. 4. Operates 3 AAA batteries. 5. Headlight lighting function: Click to enter click shifting: flashing - slow flashing - always bright - off; super loud horn warning: 110 decibels tap shifting 4 tone loop; 6. Quick release design user-friendly easy installation without tool; 7. Elastic belt buckle design suitable for all kinds of handle bar and seat tube (about 1 - 4.5 CM thickness);