Cygnett CY3890MAGRI MagRing Twin Pack. . Recommendation. If you wish to use wireless charging ensure your phone case is no more than 3mm in thickness. What’s in the box. 2x Magnetic Rings. Ring Applicator Guide. Warranty Card. Wireless Compatibility. Magnetic attachment to MagSafe compatible accessories. Compatible with any phone that supports Qi wireless charging. . Compatible with MagSafe accessories. Precise magnetic alignment. Compatible with Qi wireless charging. 2x magnetic rings included