We are stockists of the Knightsbridge screwless flat plate range of sockets and switches, this includes the double socket with USB charger for £26.99. The USB is 5V DC 2.1A rated. This means you can charge your Iphone and your Ipad at the same time. They are available in Brushed Chrome, Polished Chrome, Black Nickel and Polished Brass with a choice of white or black inserts. You can view and order at the link below:
http://www.electricsandlighting.co.uk/products/sockets/screwless-2g-sock...
