ROCK POW USB Rechargeable Bike Light Set with Horn and Speedometer, Bicycle Light and Bike Tail Light, 4 Lighting Modes Super Bright for Cycling Hiking Riding Camping OutdoorSpecifications:Weight: 100 g (battery included)Material: light ABSCharging mode: USB CHARGINGBattery: built-in lithium battery with large capacityEquipment: strong / weak / flashBattery life: 3-5 hoursFeatures:1.Large screen display, anti-glare design, power display, a cable code table can be connected, five changeable modes can be observed speed, time, speed, whole journey, one-way, etc.2.120 dB bell design, higher warning greatly improve the safety of night riding and rainy riding.3.Double switch design, easy to operate, press the bell on to switch whistles, horns, alarms, loud sounds in turn.4.Stable buckle design, just need to install the bracket, you can quickly install at any time, simple and convenient, rubber base is firmly adhered and not loose, suitable for most handlebars.5.Good waterproof performance, so that you can work in rain and wind without damaging the working lights so that you can ride safely.Package Included:1* LED Bicycle Light1* USB Taillight1* USB Charging Cable1* Speaker Controller1* Code Table Data Receiver1* Code Table Data Sensor1* Instruction Manual2* Foam Gasket4* Fixing Strap