Designed for Magnetic Only. The Car Phone Holder uses 20 strong N55 magnets that align with iPhone 15/14/13-series or later, keeping your phone stable on all road conditions. It does not affect signal or battery. The stronger N55 magnets can hold securely up to 10 smartphones. Exquisite, portable design. A damping 3D control system lets the mount fold when not in use and flex between vertical and landscape modes. The 360° rotating base lets you adjust to the best viewing angle. Optimal magnetic balance. With precise tuning, the magnetic force is up to 12N (1.2 kg) for iPhones 13-15 series, 15N (1.5 kg) for magnetic-equipped phone cases, and 25N (2.5 kg) for metal rings. Note: for iPhone 11-12 series, please use magnetic cases or metal rings. Nano 3M adhesive. Made with high quality 3M adhesive and thickened for stronger adhesion, it almost never comes off. You can mount it on the dashboard, center console, or windshield. Installation and long-lasting hold. For best results, choose a hard, flat surface. Clean with alcohol, press firmly for 30 seconds after mounting, and let it rest for 24 hours. Do not touch the adhesive pad with your fingers. Selfie-ready use. Suitable for selfies and in-car video calls, providing stable mounting in a variety of scenarios. Attach to a hard, flat surface, ensure cleanliness, and allow the adhesive to cure before use. Use scenarios: - Daily GPS navigation in portrait or landscape mode. - Hands-free calls and messages for rideshare or delivery driving. - In-car video calls or selfies while parked or waiting.