This bike light set includes a USB rechargeable front light and rear light. The front light has 4 functions:bike headlight, mobile phone holder, bike horn, and power bank. The tail light has 7 LED modes and 2 laser modes to keep you safe at night. It is a great tool for bike riding. Features: Bike front light has 4 functions: bike headlight, mobile phone holder, bike horn, and power bank. The headlight has 3 lighting modes: High light, Low light, Flash. Anti-slip phone mount: The phone holder is adjustable from 60-90mm wide, compatible with 4.0"-6.3" mobile phone. The side rails and anti-skid pad keep your phone secure in the cradle. Mobile power bank: The front light with 3000mAh large-capacity battery is rechargeable from any USB-port devices like computer, laptop, power bank. It can also supply power for your mobile phone. The four indicators keep you informed of the remaining battery power. Loud horn: The headlight is equipped with a loud horn which reaches up to 130 decibels, which helps you warn the pedestrians and vehicles. There are 5 sound modes adjustable. Super bright and safe: The taillight with 5 LEDs which provide 260 of super wide lighting angle. It has 7 LED modes and 2 laser modes to provide sufficient brightness and ensure the safety of night riding. It is powered by 2 AAA batteries (not included). Water-resistant and easy to install: The bike front light and tail light are water-resistant and durable. Installation clamps and rubber bands are included for easy handling, making it must-have equipment for cycling enthusiasts. Specifications: Front Light: Battery: Built-in 3000mAh battery Mode: 3 modes Size: Approx.13 * 6 * 4.5cm / 5.1 * 2.4 * 1.8in Weight: Approx. 164g / 5.8oz Rear Light: Battery: 2 AAA batteries (not included) Mode: 7 modes Size: Approx. 11 * 7 * 3.7cm / 4.3 * 2.8 * 1.4in Weight: Approx. 53g / 1.9oz Package List: 1 * Bike Front Light 1 * USB Charging Cable for Front Light 1 * Handlebar Clamp with Rubber Band 1 * Bike Rear Light 1 * Seat post Clamp with Rubber Band