The Duracell range of Mobile Phone Power accessories provide superior quality performance in a superbly designed charger. As you would expect from such a trusted name as Duracell. The Duracell Dual USB (Universal Serial Bus) 4.8A charger enables the user to charge 2 devices simultaneously. 2 x 2.4A USB (Universal Serial Bus) ports provide fast charging for all types of smartphone & tablets & reduces the number of chargers you need at home or when travelling. The charger has built in protection for overvoltage, overcurrent & overheating. The product is sold with a 3 year warranty & gives you a high quality USB (Universal Serial Bus) charger from a well known brand you can trust. This product is for 5V output devices only. Not suitable for devices requiring 5.2V or 5.4V