• Requires external ER•2 earphones (wide band) or ER•3A earphones (high output).*
• Stainless steel sound tubes retain eardrum pressure response of ER•2 earphones (flat to 16 kHz)
• Noise level is 10 dB below that of the human ear
• Microphone frequency response flat through 10 kHz
• Switchable amplifier for 0, 20 or 40 dB gain
• Easy-to-replace eartips
• Battery operation prevents ground loop problems
• ER•10D eartips can be used with this microphone

*Insert earphones sold separately

System Includes

• Microphone and cable assembly
• Pre-Amplifier
• Calibration cavity
• 1 pkg ER•2 front coupling tubes
• 1 pkg ER•3A front coupling tubes
• 20 probe tubes
• 10 foam eartips (regular, 13 mm)
• 10 assorted immittance eartips
• Velcro headband
• Carrying case