Ex-Display model, no battery.
- There's a mini tube inside and you can see it glow!
- Very powerful, enough to make a K1000 sing!
- Minimum microphonics on most Headphone, they worked hard to get the kinks sorted!
- Pictures and some impressions here: http://www.head-fi.org/forum/thread/562045/govibe-porta-tube
The rest you can find out
Includes a charger