3-in-1 Multifunctional DesignCombines GPS cycling computer, powerful bike light, and horn in one compact device, offering a comprehensive solution for cyclists.High-Capacity BatteryEquipped with a 4000mAh battery, ensuring long-lasting performance for extended rides without frequent recharging.Powerful IlluminationBoasts an impressive 800LM brightness, providing excellent visibility for night rides and low-light conditions.Versatile Lighting ModesFeatures single light, dual strong light, dual weak light, and flashing modes to adapt to various riding environments and preferences.Loud Horn with Multiple Tones120dB horn with 3 switchable sounds allows for effective signaling in different scenarios, enhancing rider safety.Precise GPS TrackingUtilizes GPS/wireless technology for accurate speed and distance tracking, providing essential ride data for cyclists.User-Friendly ControlsDual-line control plus button operation ensures easy and flexible management of all functions while riding.Specifications:Battery capacity: 4000mAhLight weight: about 168gLumen: about 800LMSize: 108*52*30mmHorn: 120db (3 sounds can be switched)Control: dual-line control + buttonLighting mode: single light/dual light strong light/dual light weak light/flashPackage included:1 x Bike Computer1 x Front Floating Bracket1 x Installation Screw1 x Wrench1 x Charging Cable1 x Light & Horn Control Cable1 x Cable Fixing Rubber Ring1 x English User Manual