1. Safe driving: Wireless steering wheel controller, provides ultimate precision and accuracy to ensure your safety and bring you the greatest convenience during the driving2. Easy connection: This steering wheel controller fit for all DVD GPS Navigation System Player that has steering wheel study functions3.This controller is universal , you don't need to remove the old steering wheel control to make it work4.It can support 5 buttons to meet the common operations of the car5. Its Super touch design, small space occupation and the side button will not cause the wrong operation by steering the wheel6. Integrated arc design is perfectly compatible with a variety of car steering wheels, without bad effect to the steering wheel cover7. It is applicable to the following radios, Sony, pioneer, Kenwood and android 8. It is powered by built in batteries with ultra-low power consumption, the batteries can be used for about one year to two years9. Being flexibly installed along the steering wheel as you like, this controller is easy to use and helpful safety for your driving10.Easy installation and removal