Key benefits Consolidates multiple bicycle safety and tracking tools into one integrated unit: front light, rear light, speedometer/odometer and horn. Reduces handlebar clutter and gives you the essential functions in a single package. Improves visibility and rider awareness: adjustable lamp holder lets you focus or broaden the beam for better road visibility; a 120 dB horn with three sound modes provides clear audible warning to pedestrians and vehicles. Reliable and lowmaintenance power: rechargeable USB batteries provide long run time and simple recharging on the go. Core features and specifications Multifunction design: builtin speedometer and odometer combined with front/rear lights and horn for complete bicycle use. Front light battery: builtin 4000 mAh lithium battery, rechargeable via USB cable. Rear light battery: builtin 2000 mAh lithium battery, rechargeable via USB cable. Horn: decibel 120 dB output with three selectable sound modes for effective alerts. Lamp holder: adjustable design that can concentrate (focus) or astigmatize (spread) the light beam to suit different riding conditions. Durability: constructed from quality ABS material and manufactured using precision processing. Water resistance: IPX4 waterproof rating for protection against splashes and light rain. Performance and practical advantages Long battery life from capacity internal batteries reduces the frequency of recharges during regular use. USB charging means you can recharge from power banks, bikemounted USB chargers, or household USB adapters. Strong 120 dB horn gives audible warning in urban traffic situations; three modes let you choose the tone that works for each scenario. Adjustable beam control helps you optimize visibility for dark roads, bike paths, or mixed urban lighting. Use scenarios Night commuting: Use the concentrated beam setting for longrange visibility on unlit roads, and the horn to alert pedestrians or vehicles at intersections. Urban riding and mixed traffic: Use the broader beam for better side visibility in busy streets; the loud horn and odometer/speed readout help you stay aware and communicate intent to others. Weekend rides and lightweather touring: Rechargeable batteries and IPX4 protection let you ride through light rain without worrying about immediate power loss or water damage. Materials, compatibility and care Housing material: quality ABS for impact resistance and durability. Water resistance: IPX4 protects against splashes and light rain; avoid submersion. Charging: rechargeable via USB cable; follow standard lithium battery safety and charging practices. What makes this product stand out Integrated, allinone solution that combines lighting, electronic trip tracking, and a powerful horn, eliminating the need for multiple separate accessories. capacity front and rear batteries for extended use and convenient USB recharging. 120 dB horn with three modes and an adjustable lamp holder for tailored visibility and safety in diverse riding conditions.