HaloLock Universal Ring: Compatible for iPhone 12 serial, for Samsung Galaxy S21/S20/S10 serial

Easy Setup: Alignment guide takes the guesswork out of installation (Note: Once installed, ring can be removed but not repositioned.)

Upgrade your case for Mag Series: Magnetic charging and accessories for your favorite case

Compatibility: Must be installed on outside of case, case must be less than 4mm thick

Faster and Easier Wireless Charging: Precise positioning ensures full-speed charging: For Mag Series ring enables safe and fast wireless charging by converting your ordinary case into a magnetic case compatible for Mag Series chargers and accessories. The ring will only adhere to smooth plastic (PC or TPU). The ring itself is not a magnet, but it will attach to magnets

Powerful Magnetic Lock: 30% stronger than official magnetic cases. This ring increases charging efficiency by keeping your phone centered on the charger, but it cannot increase charging speed beyond the maximum supported by your phone, charger, and adapter

Slim and Smooth: Ultra thin with smooth edges for a comfortable grip

Precise Engineering: Zero interference with standard or magnetic wireless charging. Specially-designed magnetic ring keeps your phone cool whether you're using standard or magnetic wireless charging