The Hamilton Electronics HA2USB starts with Hamilton's HA-2 headphone and adds integrated USB Sound. Use these headphones with any USB-equipped computer, even one without a sound card!
• Exclusive XearTM Software for reproduction of CD Sound
• Virtual Dolby 5.1 CH Effects
• Macintosh, Win 98Se, ME, 2000 and XP Compatible
• Impedance: 170 Ohms
• Frequency response: 18-20k Hz
• Cord: 2 meters
• Speaker drivers: 40mm Cobalt magnet type
• Weight: 5 Ounces
• One (1) year warranty.