USB Rechargeable Bicycle Front Light Integrate Ultra Loud Electric Bicycle Horn & Wireless Speedo meter Item Code: AL-13 RM39 / AL-14 RM46 Contact : 0164584527 Show Room 5-05-07 Hunza Complex, Jalan Gangsa, 11600 Penang RM?3/pairs Welcome wholesales / Reseller For purchase please visit https://www.cycle2uworld.com/bicycle-accessories/usb-rechargeable-bicycle-front-light-integrate-ultra-loud-electric-bicycle-horn-wireless-meter Position: Front Light 4 Modes light (High - Low - Stroke - Fluorescent Yellow) 5 Record modes odomter meter 6 kinds of sound effects Powered by: Built-in 1500 mAh lithium battery Weight: 153g Features and Description: Precise measurement for viewing total distance, maximum speed, average speed etc. Brightness of 800 lumens, up to 350m illuminating distances, 95° light angle Extremely loud and clear sound, 120db loud sound Made of high quality ABS material, IPX6 waterproof level and dust resist Compatible for all bikes kind, suitable for handlebar diameter 22.2-31.8 mm Easy to install, not tools required How to set speedometer: 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 How to install speedometer: Step 1: Loosen the magnetic head by hand and install it on the spokes Step 2: Affix the rubber sticker to the receiver Step 3: Install the inductor on the front fork opposite the brake Step 4: The alignment of the head between the two sensors must not exceed 3mm Package includes: 1 x Bike front light 1 x Silicone mounting strap 1 x USB cable 1 x Code table data receiver 1 x Data sensor of the code table 2 x Rubber foot for sensor 1 x Horn controller 1 x User manual More detail please click this LINK https://www.facebook.com/media/set/?vanity=QuickDialEnterprise&set=a.4671040116245503