This Hyundai Sonata Key Fob Case Rubber Pad is the perfect replacement for your old or lost key fob. With a package included of 2 pieces of rubber pads and 4 buttons, you can easily program the fobs and enjoy the convenience of trunk release and 2-way paging. Designed specifically for Hyundai models, this rubber pad key fob case is made of durable silicone material in black color. The unit type is a unit and it does not come with a battery/transponder chip/electronic feature. This product is a great addition to your in-car technology, GPS, and security.