Item specifics: Color: Black Material: Environmentally friendly fire-retardant PA66 Nylon+Metal USB Power Socket Size: about 50x37mm Install Hole: 28.2mm Short circuit / overheat protection. USB outlet 5V up to 2.1A Easy to satisfy your need with USB socket. Waterproof protective caps and USB cover. Perfect for travel use. Waterproof dustproof material can be used for the interior and exterior application. Can be installed vertically, horizontally or underneath the dash, or any flat surface. Widely used with electric equipment for power supply: Vehicle,GPS, mobile phone, camera, mp3 Optimised for iPad, iPhone & iPod - fast charging at full speed (2.1Amps for iPad, 1Amp for iPhone/iPod). Apply to all USB charging mobile phones or other electronic products. Run multiple accessories at one time, very convenient and easy to use. Cautions: Check maximum voltage on devices to charged in advance. Always cover outlets when noy in use to aviod dust and water entering. This product is for 12/24V vehicles only. Only use on voltage specified. Do not operate this device while driving. Package Included: 1x DC12-24V Waterproof Car Charger Adapter Dual USB Port 5V 4.2A With Indicator Light