1. Separate dry & wet sections 2. Dry & wet sections electrically mobile 3. Light installed at center of bridge 4. AIR x 1; O2 x 2, VAC x 1; power outlet x 10; network outlet x 2 5. Imported German outlet 6. Formed from one-shot aluminum alloy 7. Other gases (optional)Suitable for: communication machine, monitor, video telephone, background music, teaching and long-distance consultation system