about Solar energy Usb bike lights: 1. Bicycle light 3 kinds of lighting level modes, press the button to change the mode and integrated solar panel, automatically charging in the sun, to help you have more riding fun or easily achieve your fitness goals. 2. When riding a bicycle, the 120 decibel bicycle horn is very loud. 5 Sound mode, long press the ringtone to switch modes. You do not need to install a separate bell on the handlebar. Save valuable space and money. What are the advantages of this bike lights? Dustproof and waterproof Super bright beam Horn warning function Large capacity battery 5 modes available Switch between 3 lighting modes easy installation Specification: Name: Solar Horn Light Material: ABS+silicone strap Color: red/blue Size: 11*4*3.5 cm/4.3*1.57*1.37 in Weight: 145g Battery capacity: 2000 mAh Lamp beads: T6 LED Range: 200 m Speaker decibel: 120 decibels Instructions: Step 1: Align the base with the optical card slot and slide it in. When it feels stuck, the installation is complete. Step 2: Fix the headlight on the base, press the switch when disassembling, and then slide it out. Step 3: The strap has strong elasticity and can be adjusted in thickness, and rubber bands are installed on various pipe diameters. The package includes: ✓1 ×LED bicycle light ✓1 × Bicycle tail light ✓1 ×Silicone installation strap ✓1 × User Manual Tips: -When the battery is too low, please charge it in time to avoid affecting the battery life. -When not in use for a long time, please charge it every 1-2 months. -This product is a strong light, please do not direct your eyes to avoid accidents.