The VAIO WA Wireless Digital Music Streamer from Sony is a portable stereo that allows you to play digital music from your PC anywhere in your home. You can wirelessly stream music from your computer to your stereo with ease via 802.11b/g Wi-Fi. The stereo features speakers that are capable of 8W per channel when using AC power or 4W per channel on battery power. It also includes 128 MB of internal memory for music storage.