Multi-function SWC: Featuring 5 buttons and a rotary knob, this SWC lets you manage voice commands, volume, track changes, calls, and screen visibility. It's like having assistant right in your car, making your driving experience more convenient | Luminous Keys: The keys have a soft backlight, making it easy to find the functions you need, day or night. It’s all about convenience and efficiency | Easy Installation & Compatibility: No need for special tools. The adjustable strap design fits any steering wheel. You can have it installed in minutes, and enhance your driving experience. Only compatible with our X10 series | ABS+PC Material Design: Made from ABS+PC material, this SWC is lightweight yet strong, and it can work in different temperatures. It's not only sturdy but also stylish, a great addition to your car's interior | SWC Signal Receiver: Before turning on your car stereo, please make sure to plug the receiver into the SWC 3.5mm jack socket located on the back | Product Care: a 12-m0nth product care from purchase. Our customer care team, details in the box, responds around the clock during workdays. Online manuals in various languages could see the package details