MULTI-FUNCTIONAL: Designed with two buttons, for controlling headlight, and horn, easily operate. EASILY INSTALL: Easily mount on your handlebar, quick and simple. Equipped with the long connecting line, you will not worry about the length. HIGH QUALITY: Constructed by high-quality material, which is lightweight and durable, can resist various bad weather. Suitable for DYU D3+ GUARANTEE: If you are not satisfied with the product you received, you can send emails to us at any time. We will reply to you instantly and help you solve your problem.