Multi-function Bike Lights SetThis is not only a bicycle light,but also a multi-function combination smart watch light of stopwatch sensorelectric horn warning light fog light,horn light, measuring speed, distance and riding time and power display,also equipped with emergency flashlight and high-decibel bicycle bell,which can realize bicycle tracking, lighting and bell alarm during riding.5 Light Modes & 5 Sound ModesCan be used as an emergency flashlight,Strong light/Yellow light/Weak light/High light/Flash/ 5 modes available,suit to various kinds of situation. With the premium ABS, the bicycle light is solid and durable. The bike 5 sound modes to be changed.IPX4 waterproof rated front light and ride your bike, rain or shine.for outdoor cycling trip and bicycle training.USB Rechargeable Headlight & Battery indicator Function 4 power indicator lights: 100%, 75%, 50%, 25%. When Battery level is less than 25%, need to charge ASAP.T he bicycle light can be charged directly with any USB charging port, such as mobile phone USB charger, power bank and laptop.High-definition LCD DisplayHigh-definition 4-layer LCD display,digital display,can be connected to the stopwatch,speed observing speed per hour,large screen display,5 switchable modes,power display,can be connected to a wired stopwatch to observe the speed,time,speed,full range,ne-way,etc.Multiple modes can be easily changed.Widely Application& Suitable for All Kinds of BikesUniversal design mount,make one size to fit all bikes,Mountain,Big Road Bikes,Hybrid Bikes,City Bikes,or any Bike including Kids bikes,stroller,mower,snow blower,skateboard,wheelchair,motorcycle,trike,BBQ grill,scooter,ebike,boat,kayak,and more! If you have any problem, please feel free to contact us via amazon email.