The Gametel is a bluetooth wireless game controller mobile phones and tablets. It works with both iOS based devices (iPhone and iPad - iOS 4.0 or greater) and Android devices (mostly Android 2.1 or later but best off with Android 4, ICS, or later). Gametel also works on Windows or OSX through HID support.
Gametel features a 9 hour battery life. It also has a total of 9 buttons and led charge and connectivity indicators. The Gametel also has a universal retractable phone holder for holding the phone on the top of the device.
Emulators and quite a few games are compatible with this game controller. See the list of iPhone and iPad compatible games here: http://www.gametel.se/index.php/recommendedgames/iosgames and a list of compatible Android games here: http://www.gametel.se/index.php/recommendedgames/androidgames.