Hamilton Buhl Stereo Classroom Testing Budget Headphones - 48 Class Pack

Part number: HMC-HA2P

A Nice Class Pack of 48 headphones and 1 sturdy storage case.

Affordable stereo headphones great for testing and more
Perfect for use with CD players, MP3 Players, Computers & more
Individually packed in zipper bag
A step above most inexpensive / cheap headphones; great sound quality for the price!

Specifications:
Operates in 1/8 inch stereo / right angle plug
Impedance: 170 Ohms
Frequency response: 18-20k Hz
Cord: 4 feet
Speaker drivers: 40mm Cobalt magnet type
Weight: 5 Ounces
Individually packaged in plastic bag
90 Day warranty.

also: HA2P or HA-2P