Features12.9\u0027\u0027 large LCD screen for clear and crisp reading during Cycle. 2Imported GPS chip, faster and more accurate position and trace. 3Track and display speed, time, distance, track, altitude, trip time and multiple data in data instantly. 4Built-in thermometer and barometer. 5Support ANT+ peripheral connection: Speed, cadence, heart rate, power. 6Connect with smart phone via BT 4.0 to sync and analyze data. 7IPX6 water resistant body allows for rainy day riding. 8Built-in 1100mAh lithium battery, endurance time is more than 30 hours. 9Easy to install onto the handlebar with the mount and O-rings provided.SpecificationFunctions:LAP: CircleMPH: Miles per hourKMH: km per hourMaximum speedNOW: Current speedAVG: Average speedAST: AscentODO: OdographDST: Trip distanceALT: AltitudeGRA: GradientBacklightTemperatureTimeANT speed sensorHeart rateCadencePowerSpecification: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, powerWater resistantrating: IPX6Weight: 88g / 3.1ozSize: 9 * 5.3 * 2cm / 3.5 * 2.0 * 0.7inPackage weight: 149g / 5.3ozPackage List1 * Smart Bike Computer 1 * USB Cable1 * Mounting1 * Rubber Pad3 * Rubber Ring