Multi-functional cycling computer will track cycling data like current/maximum/average speed, trip distance, altitude, cadence, power, heart rate, temperature and so on. And 2.9'' LCD large screen provide clear and crisp reading, enjoy your pleasant cycling trip with it~ Features:2.9'' large LCD screen for clear and crisp reading during cycling.Imported GPS chip, faster and more accurate position and trace.Track and display speed, time, distance, track, altitude, trip time and multiple data in data instantly.Built-in thermometer and barometer.Support ANT+ peripheral connection: Speed, cadence, heart rate, power.Connect with smart phone via BT 4.0 to sync and analyze data.IPX6 water resistant body allows for rainy day riding.Built-in 1100mAh lithium battery, endurance time is more than 30 hours.Easy to install onto the handlebar with the mount and O-rings provided. 21 Functions:LAP: CircleMPH: Miles per hourKMH: km per hourM: MeterKM: KilometerFT: FeetMI: MileMAX: Maximum speedNOW: Current speedAVG: Average speedAST: AscentODO: OdographDST: Trip distanceALT: AltitudeGRA: GradientBacklightTemperatureTimeANT speed sensorHeart rateCadencePower Specification:Screen: 2.9'' LCDMemory: About 150 hoursEndurance time: 30-35 hoursCharging time: 3.5 hoursSystem: BT 4.0Peripheral protocol: ANT+ANT+ connection: Speed, cadence, heart rate, powerWaterproof rating: IPX6Weight: 79g / 2.7ozSize: 9 * 5.3 * 2cm / 3.5 * 2.0 * 0.7inPackage weight: 129g / 4.5oz Package List:1 * Smart Bike Computer1 * USB Cable1 * Mounting1 * Rubber Pad3 * Rubber Ring