Picture caption: aim's AS301 sound
adapter has a unique vacuum tube
The device features a vacuum tube
style design, as shown in the
pictures. At first glance the
tube looks like it is made of
glass-however the device is made
with plastic to simulate the look
of a vacuum tube. Despite saying
“it is a vacuum tube design”
on the box, do not be mistaken.
The AS301 does not actually have
a genuine vacuum inside, it only
looks that way.
Specification: size 23 (D) ×
45 (H) mm, weight is 12g. The
sound chip inside is the "VT1610".
Supported OS are Windows 2000/XP/Vista/Mac/Linux.
The inside of the tube has a blue
light that illuminates the interior
when the USB flash plug is used to connect to a computer.
Estimated price from online retailer
ARC is around 3,000 yen."