Koss P9 Headband Earphones

P9 (Koss)

A Portable headphone is a headphone that is used on-the-go. Portable headphones tend to be smaller, more lightweight, and may have features that lend themselves to listening on-the-go, like carrying cases or collapsible headbands.

Features:

• Frequency Response: 40-20,000 Hz
• Volume control feature for convenient sound adjustment
• Behind-the-head design for maximum comfort during extended wearing periods
• Straight, single entry 4 foot cord

• Frequency Response: 40-20,000 Hz
• Impedance: 32 ohms
• Weight: 0.7 oz
• Sensitivity: 102 dB SPL/1mW
• Distortion: < 1%
• Cord: Straight, Single Entry, 4ft
• Plug: 3.5 mm