• Approximates TDH-39, -49 and-50 response at the eardrum
• 70+ dB isolation between ears: reduces the need for masking
• Eliminates collapsed ear canal problem
• 30+ dB external noise exclusion
• Calibrated in 2 cc Coupler
• Calibrate according to ANSI S3.6-1996

System Includes

• Earphones (10 Ohm or 50 Ohm)
• Dual-mono 7 ft. cable assembly
• 50 foam eartips (regular, 13 mm)
• 50 foam eartips (baby, 10 mm)
• 2 foam eartips (jumbo, 18 mm)
• Velcro clips