Equipped with 12W/2.4 amps output, this Lightning retractable home charger can charge your iPhone 7 at its maximum rate. Featuring a compact design with folding blades and innovative retractable mechanism, the 2.5 ft. cord rapidly retracts for easy storage without any tangles. Our chargers are built with advanced power smart detection that identifies the device’s max charging speed and smart IC chip technology that provide overcharge, overheat and overcurrent protection.We take pride in providing high quality Apple certified products; our Apple licensed products contain an authorization chip issued by Apple that ensures 100 percent compatibility to all Lightning devices.