Bicycle Parts Long press the button to turn on the light and simply press it to emit a sound of 120 decibels. Equipped with a built-in 350 mAh lithium battery. Suitable for all kinds of mountain bikes, road bikes. Specification: Product name: 2-in-1 horn car light Material: ABS+ lamp beads Brightness: 300 lumens Product specifications: A: Four lamp bead headlight B: Four lamp bead horn lamp Product size: about 5x4.5x3.5cm/1.97x1.77x1.38 inches Volume: 120 decibels Power supply mode: built-in lithium battery Battery capacity: 350mAh Weight: about 44g Pack List: bike lights with bell*1+ strap *1 + USB charging data cable*1 or bike lights with bell*1+ strap *1 + USB charging data cable*1+ wire-controlled horn*1 See more product details 1.Durable Material: Constructed from durable ABS material, our bike light with bell withstands rainy or humid environments. Its waterproof sealing extends the service life for reliable use. 2.Diverse Lighting Modes: Meet your different cycling needs with seven lighting modes. Long press for easy on/off, short press to switch modes. Choose from low/high beams, breathing light, and more. 3.High Decibel Horn: This bike light with bell can be connected to an external control , so you can simply press it to emit a sound of 120 decibels, effectively warning pedestrians and vehicles. 4.Convenient USB Charging: Skip the hassle of frequent battery replacement with our bike light with bells built-in 350 mAh lithium battery. Enjoy 4-6 hours of continuous use after full charging, and conveniently recharge with any USB-powered tool, such as a power bank or a mobile tool. 5.Easy to Install: No tools are required to install this bike light with bell, just fix it on the handlebar with a strap. It is suitable for all kinds of mountain bikes, road bikes, and also easy to disassemble.