Features:1. Small size, long beam distance with a display screen. High brightness T6 lamp bead.2. 4 light modes: high bright, low bright, flash, yellow light, for different situations.3. Big screen display, anti-dazzle design, with battery display function.4. Bike speed meter function, 5 display mode.5. 1500mAh big capacity lithium battery, USB charging, 4h charging time, 3h battery life.6. 120DB horn, 6 sounds to switch. Life waterproof.7. Easy to detach or install.Front light: smart speed beacon horn light350 lumens, quick release design, USB charging, 120 decibel speakerBuilt-in lithium battery, USB interface suitable for multiple charging methodsIntelligent power display: large display, dazzling design, when the power is small, can be connected to a wired computer to observe the speedFour lighting modes, suitable for different road conditions: strong light, low light, flash, yellow lightLife rainstorm grade waterproofPackage Included1 x Odometer Bike Horn Light1 x Bracket1 x Connector1 x Key SwitchNotes:1. Please allow 1-3cm error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you