This World to USA travel adapter makes an essential companion for poweringmultiple devices from a single socket for travellers from 100s of destinations.The 2 USB ports have a 2.4A shared auto-regulating power output when dualcharging. Perfect for quickly and efficiently charging two power-hungry USBdevices such as tablets, simultaneously. Features: World to USA Duo Travel Adaptor with two USB Ports - Earthed Certified to safety standard BS 8546 Charges up to four devices simultaneously in over 40 countries Detects the device on charge, adjusts power for quickest charge Suitable for use with small electrical devices Specifications: Dimensions: H:6.6 x W:11.1 x D:5.7 cm Colour: White Guarantee:1 year Material: Housing & Shutters Polycarbonate. Brass Pins. Phosphor Copper & Brass Internals Model Number: 632