With the 2-in-1 design of bike light and horn, this bike light is extremely practical. Waterproof design makes it not easy to damage by rain so as to has a long service life. Since it is designed with 4 modes, it allows you to switch as needed. Featuring high brightness LED lamp bead design, it ensures excellent lighting effect. It is made of good aluminum alloy, ABS, silicone material. The length of this product is 7cm, the width is 4cm and the height is 4cm. It is suitable for outdoor riding. Item Name: Bicycle Light Material: Aluminum Alloy, ABS, Silicone Light Beads: 12 COB Wicks Speaker Volume: Approx. 120dB Bead Lumen: Up To 250 Lumens Remote Control: Split Remote Control Battery Capacity: 1200mAh (Battery Included) Waterproof Rating: IPX5 Endurance: Approx. 4 Hours In Strong Light Mode Light Mode: Strong Light/Low Light/Flashing/SOS Features: High Brightness, Touch Screen, USB Charging Size Details: 7cm x 4cm x 4cm/2.76" x 1.57" x 1.57" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Bicycle Light 1 x External Wiring Control 1 x Charging Cable 1 x Anti-skid Spacer 1 x User Manual