Description:

4 in 1 Cycling Set: include a 500 lumens front Bike Light with Speedometer, Odometer,and 120 DB Bike Bell & Red Tail Light
IPX6 Waterfproof: made of high quality ABS material,dustproof and waterproof, not afraid of rain
The illumination distance of the headlamp can reach 300 ft, 4 lighting modes for you to choose.
With the USB rechargeable: the 2000mAh lithium-ion internal battery can be charged Thousands of times and per use 5-8 hours.
5 modes to switch: ODO, DST, MXS, AVS, TM. Precise measurement adjustable for viewing total distance, maximum speed, average speed, cycling time and one way record.

Specification:

Material: High quality ABS material
Size: 110x58mm

Set speedometer
Step Step 1: Set the unit --- Long press the buttons "+" and "-", then press the button "-" to switch between km/h and m/h.
Step 2: Set the speedometer---Press the button "+", then the number "208" flashes on the display, which means the default wheel size (only one wheel's circumference), the unit is CM. You can press the button "-" to change the track to 10-315 cm.
Step 3: Set the odometer --- Press the button "+", then press the button "-" to adjust the odometer.
Step 4: Press the button

Package Includes:

1 x Bicycle headlight
1 x USB cable
1 x Code table data receiver
1 x Speaker controller
1x Nylon belt