4 in 1 function: This is a cell phone holder with a spotlight. It comes with a speaker / horn with five sound effects to remind pedestrians and vehicles, and it's also a 2400mAh portable power bank. T6 highlight dual lighting: Dual T6 lamp bead design, more sufficient brightness, to ensure safe driving at night, with three modes of strong light, low light, flash. Phone holder: There are silicone pads and soft sponges around and around the phone holder to protect your phone from damage. Suitable for 4-6.5 inch cell phones. USB charger: USB charging is more convenient, you can charge the headlights via USB, it is also a mobile power supply for your mobile phone or laptop when you need it. Ease of installation: no installation tools needed, quick to install on your bike, electric car, motorcycle, making your riding safer and easier.