Roland CUBE Lite Monitor:

The white Cube Lite Monitor Amplifier from Roland is a 2.1 channel audio system designed to allow you to sing and play along with and record to your iPhone, iPad, or iPod touch. It features two 1/4" inputs that allow you to connect either one stereo instrument or a microphone and one mono instrument simultaneously. The Cube Lite Monitor has built-in reverb and echo effects designed to provide ambience for singing and playing. A pair of three-inch stereo speakers and a three-inch subwoofer produces 10-watts of total output. If you need to practice silently, the Cube Lite has a 1/8" headphone jack that mutes the speaker output when in use. The Cube Lite connects to any iOS device through its i-Cube Link input and included four-pole mini cable. With the free CUBE JAM app, you can sing and play along with your own tracks or record directly to your iDevice. You can also use the Cube Lite as a playback device for your digital music library or for karaoke.