On cycling, features a large easy to read LCD screen combined with a heavy-duty kit for extra durability. Bike speedometer with accurate tracking on speed and distance helps you to get more fun of your cycling trip or easily achieve your fitness goals. Please enjoy cycling with this wonderful gadget in the anytime to feel your speed!5 Mode:- Total traffic mileage (ODO)- Single lane mileage (DST)- Maximum speed (MAX)- Average speed (AVS)- Riding time, elapsed time (TM)4 in 1 Functions:- High Brightness Front Light with 2 LED LampBicycle Speedometer and Odometer- Red Battery Powered Taillight- 120 db Bike Horn4 Llight Modes : - Left strong light- Right strong light- Two strong lights- Two lights flash alternatelyFeatures:Bulb: 2 * T6 LEDProduct size: 11 * 5. 8 * 4. 5cmWaterproof level: IP44Volume decibel: 120 dBProduct weight: 125gPacking size: 16.8 * 15.3 * 4.5cmPackage weight: 312gMaterial: ABSSwitch: Push switchBattery: Built-in lithium battery for 4-8 hours usageCharging method: micro USB chargingPackage Include: 1* Bike light with Speedometer + 1* Red Taillight1* Strap + 1* USB cable + 1* Bike alarm bell1* Speedometer data sensor + 1* Speedometer data receiverNote: After the system enters the standby state, there is no button cargo speed signal within 5 minutes, the system enters the sleep system. When the system in sleep, MODE button or SET button is triggered, and the system enters standby mode.