With Apple's free Remote app, you can wirelessly control your music from your iPhone, iPod touch or iPad. This speaker can be used for iPod/iPhone docking (with a USB cable), allowing you to charge and receive local audio playback. For multi-room audio, you can add multiple iW1 speakers throughout your home and with AirPlay get music from any or all of your speakers simultaneously. The audio platform of the iW1 AirPlay features Bongiovi Acoustics DPS. This system features two specially tuned three inch subwoofers, two one inch tweeters, and a Class-D amplifier. The capacitive touch panel of the iHome allows for easy command entry. This multimedia speaker comes with a rechargeable li-ion battery, which makes it portable. The iHome iW1 AirPlay multimedia speaker comes in a black color.