iLive IS819 Wireless powered speaker system for iPod Dock plays and charges iPod Supports multiple speakers Advanced hi-fi sound with Channel Purity AM/FM radio Remote Pairing button Wireless iPod System w/AM/FM Radio Wireless Weather Resistant Speakers and Digital 2.4GHz ISM Wireless Transmitter Advanced Hi-Fi Sound with Channel Purity Transmission Range 200ft Line of Sight, 90ft Indoors Auxiliary Input for iPod Shuffle and Other Audio Devices