Features1Versatile Functionality: Featuring a wireless speedometer odometer, high brightness flashlight, and horn all in one, along with a LCD screen and automatic backlight, this bike computer meets all your nighttime riding needs. 2Durable Plastic Construction: Made of plastic with waterproof and shockproof designs, this bike speedometer odometer can withstand complex environments, ensuring reliable and long lasting performance. 3Long Lasting Illumination: Equipped with high brightness LED beads, dual light heads, and 800 luminous flux, this wireless bike computer ensures a long lighting distance for safe riding at night. 4Extended Battery Life: Utilizing energy efficient batteries, this wireless bike computer guarantees prolonged illumination, meeting the demands of long distance rides. 5Easy Installation: With its flexible mounting system, this wireless bike computer can be easily installed on the front of any bike, making it convenient to use and carry, suitable for various models.SpecificationItem Type: Wireless Bike ComputerMaterial: PlasticWeight: Approx. 274g/9.7ozColor: GreenProduct Size: Approx. 11x6x5cm/4.33x2.36x1.97inComputer Battery Type: 5V Lithium Battery x1Computer Battery Capacity: 4000mAh (Shipped with Built in Battery)Sensor Battery Type: 3V 2032 Button Battery x1Sensor Battery Capacity: 150mAh (Shipped with Built in Battery)LCD Screen: YesRubber Strip: Rubber Strip is Used to Hold the Meter Ring in Place, Wrap Around the Handlebar to Prevent Scratches, and to Hold the Wire Controller in PlaceFeatures: Total Mileage, Total Time, Current Time, Clock, Calories Burned, Hours, Current Mileage: km, Current Speed, Maximum Speed, Average Speed (km/h mph), Battery Display, Charge IndicatorLight: Dual Head 800LM, 4 Gear AdjustableSpeaker: 120dB 3 SoundsAdditional Features: Independent Wire Control, Auto BacklightWaterproof Rating: IP4, Life Waterproof, Not ImmersibleHow to Use: 1. Long Press The Power Button For 3 Seconds To Turn On The Device. The Bike Computer and Headlights Will Start Working.2. Press The Power Button Again, The Single Light Bead Will Be Full Bright, And The Screen Headlight Icon Will Display The First Gear.3. Press The Power Button Again, The Two Light Beads Will Be Full Bright. The Screen Headlight Icon Will Display The Second Gear. After 30 Seconds Of No Movement, The Brightness Will Decrease To 60%. Moving Will Return To Full Brightness.4. Press The Power Button Again, The Two Light Beads Will Be 60% Bright, And The Screen Headlight Icon Will Display The Third Gear.5. Press The Power Button Again, The Headlights Will Flash In Dual Mode, And The Screen Headlight Icon Will Display The Fourth Gear.6. Press The Power Button Again To Turn Off The Lights While The Bike Computer Remains On.7. In Any Gear, Long Press The Power Button For 3 Seconds To Turn Off The Bike Computer And Headlights, And The Screen Will Not Light Up.8. When In The On State, If There Is No Movement For 4 Minutes, The Screen Will Enter Standby Mode, Displaying Only The Clock And Power.9. During Charging, The Battery Display Will Show A Flowing Motion And A Sparkling Icon.10. Long Press For 3 Seconds To Turn On/Off The Backlight.11. Distance Traveled, Travel Time, Calories, Maximum Speed, And Average Speed Are Recorded Data For Each Ride. Please Turn Off The Device After Each Ride To Clear The Data.12. Please Recharge The Battery When It Is Low. If The Power Supply Is Completely Depleted, Total Time And Total Dist Data May Be Lost. The Main Unit Will Return To Factory Mode And Need To Reset Parameters13. Long Press The Setup Key And Mode Key For 10 Seconds, All The Numbers On The Display Will Light Up To Restore The Factory Setting15. Extension Cord Control Setup Light Button, Can Be Used To Control The Light Gear, The Same Function As The Switch Button On The Main Body.Package List1 x Bike Computer1 x Sensor1 x Handlebar with Wire Control1 x Machine Base1 x U Shaped Ring1 x Rubber Strip3 x Cable Ties1 x Magnetic Head1 x Button Battery1 x User Manual1 x Rubber Ring Tether1 x Hex Wrench2 x Screws2 x Nuts