SIGHILL Dock M4CS Wireless Car Charger Unit for BMW 3 Series 4 Series New This SIGHILL Dock M4CS Wireless Car Charger Unit is the perfect addition to your BMW 3 Series or 4 Series. The black thermoplastic polyurethane design and finish give it a sleek look that matches your car's interior. It is a universal car charger with a mounting type grip that can easily be attached to your cigarette lighter and charges wireless through the Qi wireless charging standard. The charger comes with one port and is made of durable plastic material. The compatibility with all brands of cell phones allows you to charge your phone on-the-go. The SIGHILL Dock M4CS Wireless Car Charger Unit has features like wireless charging, which makes it easy to use and operate without the need for any cords.