<p>Powatag lets shoppers buy products by pointing their phone at adverts Camera captures a barcode-type logo which links to the advertiser's storeApp can also listen to radio and TV adverts and link to relevant storesPowatag can be used on a range of products from groceries to clothesFirm has signed up 240 brands including Adidas and Universal Music</p><p>BySean Poulter</p><p>PUBLISHED: 10:23 EST, 4 March 2014 | UPDATED: 10:47 EST, 4 March 2014</p><p>Families will be able to shop by pointing their smartphone at TV commercials, window displays and print advertisements, using tech backed by the world's biggest brands.</p><p><a href="http://www.dailymail.co.uk/sciencetech/article-2572985/Point-shoot-SHOPPING-Smartphone-camera-let-buy-products-snapping-window-displays-magazine-adverts.html">Keep reading...</a></p>