Tesecu 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 speed — Press the Button”+”, then the number “208” blinks on the display, it means the default wheel size, the unit is CM. You could press the button”-” to change the wheel size from 10-315 cm.
Step 3: Set the ODO — Press the Button”+”, then press the button”-” to adjust ODO.
Step 4: Press the Button”+”. Done.

Other Product Features:
– 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

Product Features

• 【Trusty LED Bike Light】- Bike front light is designed for brightness of 800 lumens, up to 500 ft illuminating distances, 95° light angle and 4 lighting modes to choose, lights the road ahead; Bike tail light has 220°and 700ft visibility, also 4 lighting modes, alerts drivers to your presence so they know to give you enough space
• 【USB Rechargeable for Both】- No more costs on batteries! The front bike light has a 2500mAh internal battery, which charges 2-3 hours through Micro USB port and uses 5-8 hours; The bike tail light also has an integrated 330mAh battery and a full charge takes about 1.5 hours only.
• 【Bike Computer and Horn】- This bicycle computer works well to measure and record speed, distance and riding time, which are what any serious bicyclist or fitness fanatic needs to know. Bicycle front light and horn 2 in 1 design. The bike horn can emit a warning sound up to 120 dB and there are 6 sounds to change
• 【Waterproof Bicycle Light】- Tesecu bike front light is made of high quality ABS material, IPX65 rated, which means no need to release it if you get caught in the rain. The surface of piano paint technology, strong and durable. Also this rear light is IPX4 waterproof
• 【We Promise】- We offer 1 year warranty & 30 days satisfaction or return guarantee for this bicycle light. If you have any problems, please feel free to contact us via amazon email. If you are a person who like cycling trip or other outdoor activities, this bike light set is the better choice to improve your visibility and safety