NiAA300 2.4GHz Digital Wireless Audio Transmitter System for iPod/iPhone/iPad 2.4 GHz digital audio transmitter streams audio from your iPhone/iPod/iPad to your sound system up to 100 feet away Uncompressed CD-quality audio signal penetrates walls, doors, ceilings, and floors Play movies and games without losing audio/video synchronization Expand system to control music in every room with additional receivers Hassle free plug n play setup