Cyber Acoustics ACM 500 - Headphones ( ear-cup )

(Based on manufacturer's information)The ACM-500 pro series headphone is designed for educational use. Features include rotary volume control and on/off. PRODUCT FEATURES: Stereo headset; Full size soft Leatherette headband; Soft leatherette ear cushions; Adjustable headband; 9' shielded cord - 3.5mm gold plated stereo plug, 6.3mm gold plated stereo plug; 40mm dynamic drivers; Frequency response: 20-20, 000 Hz; Impedance: 32 ohms.

Product Description:	Cyber Acoustics ACM 500 - headphones
Product Type:	Headphones - wired
Recommended Use:	Portable audio system
Localization:	English
Headphones Type:	Headphones - binaural
Headphones Form Factor:	Ear-cup
Connectivity Technology:	Wired
Sound Output Mode:	Stereo
Response Bandwidth:	20 - 20000 Hz