1900mAh Portable Rechargeable Back-Up Battery For IPhone 4/3G/3GS

USB - Universal Serial Bus

iPhone - A popular smartphone manufactured by Apple

AC - Alternating Current

Battery - A device used for the storage of electricity

PC - Personal Computer - an electronic device for acheiving multiple electronic tasks including word processing, emails and internet access

weight - A measure of the force applied on an object by gravity. Measured metric in grams and kilos or imperial in lbs and oz

Weight - a measurement of how heavy an object appears due to the pull of gravity. For example the weight of an object on planet earth will be different to the weight of the object on the moon

USB - Universal Serial Bus. A method of connecting a device to a computer

Rechargeable - Something that can be charged back to its original state, e.g. batteries.

MiniInTheBox is an innovative online retailer selling quality consumer goods at wholesale prices. The company aims to make the best Chinese-made products widely accessible to all without customers having to pay the high prices in their area. They also aim to introduce customers to exciting new products that may not be available from their local retailer or wholesaler. MiniInTheBox currently has customers in over 50 countries. A wide range of products, including thousands of electrical items, gadgets, gifts and accessories, are sourced directly from the manufacturer so costs are kept as low as possible. Meanwhile MiniInTheBox is committed to maintaining high standards, excellent customer service (24 hr support on weekdays) and quick delivery. Delivery is free of charge worldwide with no minimum order requirement and no hidden fees. Paypal is accepted as well as major credit and debit cards.