The Logitech Squeezebox Duet is a perfect companion for a music collection and can stream digital songs via an IEEE 802.3u Fast Ethernet connection, as well as a speedy Internet Wi-Fi connection. This Wi-Fi digital music streamer can play files from a PC hard drive and delivers from various Internet radio sources. Supported audio standards on this Logitech digital media streamer include WMA, WAV, FLAC, MP2, MP3, and AIFF. The connectivity protocols on the Logitech Squeezebox Duet include IEEE 802.11b Wi-Fi and IEEE 802.3 Ethernet. The connections on this Wi-Fi digital music streamer include one Network (RJ-45) rear connector, one rear audio line out, and one rear SPDIF output. This Logitech digital media streamer also features upgradeable firmware, an LCD display, and a convenient remote control with a charging stand. It also has network functionality with digital audio playback and Internet radio playback. The dimensions of this Logitech digital media streamer are 1.1 inches tall by 6.1 inches wide by 4.4 inches deep.