This motorcycle USB charger provides 4.2A of power, which is sufficient to charge large mobile phones such as Samsung Galaxy/iPhone/iPad/MP3/MP4/GPS/camera/Bluetooth devices, etc. Safety First: 12-24V input voltage, 5V/2.1A output with quick disconnect and overcurrent protection, CE and RoHS certified, ensuring safe charging. Super Durable: Made of high-quality ABS and injection-molded material, resistant to high temperatures and corrosion, super durable and not easily deformed. Flexible and Stable Mount: Well-fitting mounting bracket with 4 installation clips and 3M adhesive, can be rotated 360 degrees, allowing for free installation of the adapter. Reliable and Weatherproof Housing: It has a rubberized USB casing for water and dust resistance, effectively improving its lifespan.