Bike Light With Horn Speedometer 3 in 1 Multifunctional Rechargeable Bicycle Front Lamp Lighting Cycling Computer 120DB Bells Product Description -Brand: BUCKLOS -Product: Bicycle speedometer horn light -Battery:  4000mAh -Light source: T6*2 -Brightness:   800 lumens -Horn:            120dB(3 modes) -Waterproof:  life-grade waterproof -Meter Type:  Wireless -Weight:         CA.168g -Features:      Multi-function 3-in-1 (speedometer + headlight + horn) -List:  1pc*( tools & screws+ main unit+ fixed base + speed sensor + magnet + ties +charging cables + Light and Sound cord controller +wire control retaining ring ) 【High-brightness dual-head 800 lumens】: Powerful lighting capability ensures sufficient brightness in various environments. 【IPX4 life waterproof】: Offers a certain level of waterproof performance, suitable for outdoor use but not suitable for immersion in water. 【High-definition LED large screen display】: Provides a clear and easy-to-read display interface, presenting information at a glance. 【Battery level display】: Instantly shows remaining battery power for timely recharging. 【4000 mAh high-capacity battery】: Long battery life provides stable power supply for prolonged use. 【Accurate mileage tracking】: Records journey data accurately to help users monitor detailed exercise information. 【Automatic backlight and wake-up】: Smart features adjust backlight and wake-up status based on ambient light and usage. 【120 dB with 3 selectable sound modes】: Built-in efficient speaker supports switching between different sound modes to suit different needs. 【Wireless transmission of stopwatch data】: Supports wireless transmission of stopwatch data, convenient for recording and analyzing usage. 【Spotlight and floodlight with four adjustable modes】: Light modes can be freely adjusted to meet various lighting needs. 【Independent line control, hands-free operation】: Designed for convenience with one-handed operation of all functions.