Cheapest I could find. 15/20 quid cheaper than other places e.g. eBay and Amazon. I have been testing it before Christmas day and it is really good fun. Plus a big bonus (when compared with other remote controlled devices) is it works with 1.2V rechargeable batteries!
Happy Cow 777287 iSpy Tank Wi-Fi Controlled 4CH iPhone/iPad Controlled
Let the secret agent training begin... Being a secret agent requires split-second decision making, the ability to blend in at crowded places and, fortunately, driving some awesome vehicles. If you need proof, then take a look at our innovative and classy i-Spy Tank. You can be your own 007 with the i-Spy Tank. The i-Spy Tank features a camera with real-time video imagery, records videos and takes high-resolution still photos. Simply connect your iPhone or iPad device with your spy tank via Wi-Fi and get ready to have full control over your tank. You'll have the ability to drive it around and watch video recordings live from your device. You might not have a licence to kill, but you certainly do have a licence live out your spy fantasies with this awesome i-Spy Tank toy.
•Features a camera with real-time video imagery
•Records videos and takes high-resolution still photos
•Compatible with Android and iOS devices; use your device to drive the spy tank. Supports accelerometer driving!
•Connect device to spy tank via Wi-Fi (Tank becomes an access point)!
•Free App: Download from the iTunes App store or Google Play store!
•Send Video and Sound up to 100ft