is committed to build the highest quality lighting systems, because we understand the importance of proper lighting for every cyclist's visibility and safety. The Steps for Setting Up The Speedometer Step 1: Set the unit --- Long press the Button "+" and "-“ together, then press the Button "-" to transform between km/h and m/h. Step 2: Set the speedometer --- Press the Button"+", then the number "208" blinks on the display, it means the default wheel size (the circumference of just one wheel), the unit is CM. You could press the button"-" to change the wheel size from 10-315 cm. Step 3: Set the odometer --- Press the Button"+", then press the button"-" to adjust odometer. Step 4: Press the Button"+". Done. Other Product Features: IP65 waterproof and dustproof performance. High sensing electronic speedometer and odometer. Intelligent battery power display. 120 high decibel horn. Large-screen display, anti-glare design. Automatic, fully charged cut-off system. Smart charging ensures longer battery life. List of Package: 1* LED Bicycle Lights 1* Red Bicycle Rear Light 1* USB Charging Cable 1* Code Table Data Receiver 1* Code Table Data Sensor 1*Bicycle clip 1*Speaker cable 1* Operation Manual 4* Fixing Strap

[We Promise]Lf you have any problem, please feel free to contact us via email. If you are a person who like cycling trip or other outdoor activities, this Bike Speedometer set is the better choice to improve your visibility and safety. [Waterproof Bicycle Light] Bike front light is made of high quality ABS material,IPX65 rated,the surface of piano paint technology, strong and durable. The rear light is IPX4 waterproof, which means no need to release it if you get caught in the rain. [Horn and Bicycle Tail Light]Switch six sound modes in one button:chirp,tweets,whistle,trumpet,voice alerts.Bike Speedometer is IP65 waterproof, It is making your bicycle stand out with unmatched 360º visibility, Up to 50 meters in distance like low beam safety lighting with a wide angle view. [USB RECHARGEABLE BIKE LIGHT] Our bike front light and bicycle speedometer odometer come with the USB rechargeable function, it's built-in 1500mAh lithium battery, all you need is a USB cord and a power source to recharge (Computer, laptop or a cellphone charger), which makes them a substitute for disposable batteries and protects the environment. [LCD DISPLAY SPEEDOMETER] - Bike odometer computer records average speed, maximum speed, current speed mph / kph, riding time, odometer, one-way travel distance to effectively track your ride, with scan mode, speed comparator, maintenance , More functional time of the trip, etc. A sensitive sensor with a magnet can accurately track the speed of the bicycle. The bright LCD display makes it easy to view ride statistics.

International Protection Rating: IP65. Auto Part Position: Rear, Front. Mounting Type: Handlebar Mount. Water Resistance Level: Waterproof. Power Source: Battery Powered. Material: Acrylonitrile Butadiene Styrene. Brand: ZHUYILONG. Color: White, Black. Date First Available: July 31, 2020. Best Sellers Rank: #93,926 in Sports & Outdoors. Customer Reviews: 4.2 out of 5 stars 434 ratings 4.2 out of 5 stars. : B08F2CYG1C. Part Number: ?428-600-738. Manufacturer: ?ZHUYILONG. Material: ?Acrylonitrile Butadiene Styrene. Color: ?White, Black. Brand Name: ?ZHUYILONG. Package Weight: ?0.19 Kilograms. Item Package Dimensions L x W x H: ?4.25 x 3.7 x 2.36 inches.