Meet the iReemo Plus: a smart tool that transforms your smartphone into an Android TV controller, keyboard, air mouse, or touchpad quickly. Just plug it into your device’s USB slot and use the companion app to control it. There is no need to install a driver. It lets you control your Android TV with your smartphone from up to 100 feet away.
The iReemo Plus uses Bluetooth 4.0 to connect to your smartphone (Android, IOS). You can get yours for under $30.