Full list of features

General
Supports any sound input/output devices.
High-quality sound transfer.
DirectSound compatible.
Low-latency audio streams.
Per-session audio stream isolation.
Zero configuration is required.
Works with any virtual machines.
Mixed 32 and 64-bit environment.
Operating systems:
Workstation: Windows XP, 2003, Windows 7, 2008, Linux (kernel 2.6.12 or higher)
Server: Windows, XP, Server 2003, Server 2008, Windows 7 (Build 7600)
Linux-specific features
Adjustable audio settings (number of channels, bitrate, sampling rate).
Supports OSS, ALSA and PulseAudio.
Does not require an RDP client (has it's own client built in).