Multi-functional bike headlight with high brightness bike light, digital bike computer and loud bike horn in one, powerful and practical. Built-in high-capacity battery for long endurance, reliable quality, it can be used for a long time. Compact size, light weight, easy to install and use, perfect for mountain bike or road bike. Features: 3 in 1: Multifunctional bike headlight, integrating high lumen bike light, digital bike computer and loud bike horn in one, say goodbye to cumbersome handlebars and keep handlebars neat and tidy. Multiple Light Modes: Adopts high-quality LED beads, high brightness and wide illumination ranges, support 4 light modes, white high light, yellow flood light, white medium light, yellow light flashing. Bike Computer: Equipped with a bike computer, large screen digital display with backlight, support 5 display modes, can real-time display speed, time, mileage, remaining power, etc. Bicycle Horn: 120dB bicycle horn, one button to switch 6 kinds of sound effects, high volumes, effectively remind the passing pedestrians and vehicle, adding a safety guarantee for cycling. Long Endurance: Built-in 1500mAh high-capacity battery, low power consumption, long endurance, universal USB interface, support powered by PC/laptop, car chargers, USB hub, etc. Reliable Quality: Made of high-strength ABS material, with nice durability, high temperature and aging resistant. Waterproof design, even in light rain can be used normally, not easy to damage. Easy to Use: Delivery with a quick release bracket, easy to install and use, compatible with 22-28mm handlebar diameter, suitable for mountain bikes or road bikes. Specifications: Color: Black/ Red/ Blue(optional) Material: ABS Brightness: 300Lumen Decibel: 120dB Battery: Built-in 1500mAh Lithium Battery Endurance: 5-8 Hours Item Size: 105 * 53mm/ 4.1 * 2.1in Item Weight: 96.8g/ 3.4oz Package Size: 105 * 70 * 60mm/ 4.1 * 2.8 * 2.4in Package Weight: 180g/ 6.3oz Packing List: 1 * Bike Light 1 * Bike Computer Data Light 1 * Bracket 1 * Horn Control Cable 1 * USB Cable 1 * Sensor 2 * Silicone Pad