This magnetic car phone mount holder only supports magnetic suction rather than charging cellphone. double-side magnetic phone holder for car provides the highest magnetic strength. Ideal for widely use on multiple occasion.Notice:please place the magnetic phone holder on a smooth none porous to the strong suction. Vacuum suction magnetic phone holders has no ragged edges. The vacuum suction phone car holder combines a more intelligent vacuum technology and stronger magnetic .you'll be quite pleased with its performance, as it offers a lot of convenient features that have made your work and entertainment experiences more seamless and enjoyable. Magnetic phone holder does not charge phone. The strong suction car phone mount is designed to easy to install. Which features a suction cup that easily attaches to various smooth , such as a car window or dashboard screen, glass, mirror, smooth tiles, easy to install. When using it for the first time, please use an adapter below 15W to charge the device fully.If the vacuum exhaust sound is weak or suction not enough, pls charge it in time 1.If item not work/weak suction, pls confirm it's fully with a below 15W adapter especially for using car phone holder first time 2.If not work with your phone, pls confirm your phone model/phone case has magnetic function, if not, mandatory to use it with a magnetic metal ring 3.Since it works by expelling the air inside to the strong suction. When it pumps out the air inside, there be some noise 4. Pls use it on a smooth none porous like mirror/glass/screen,keep the contact dry and free of dust 5.Tap the button for removal, do not remove it directly Colour:Black Material:ABS Package Contents: 1 x Suction Magnetic Car Phone Holder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.