ETY•COM ™ handsfree headset for mobile phones ER-4 MicroPro earphones are ideal for a variety of consumer uses such as MP3 players, CD and DVD players and computers. Professional WARRANT Y uses include mixing and stage monitoring in the studio and during live performance.
ABOUT ET YMOTIC RESEARCH DESCRIPTIONS ABOUT ET YMOTIC RESEARCH SYSTEM INCLUDES ER-4B ER-4S ER-4P • ER•4 MicroPro earphones • • • • 5 ft. cord with 3.5 mm stereo phone plug Lightweight and portable • ⁄ " stereo phone adapter plug •...
EARTIPS INSERTION In addition to six 3-flange eartips, ER-4 MicroPro earphones are Depending on which ER-4 version you have, identify the earphones by supplied with ten disposable foam eartips. Both types provide excellent color (red = right; blue = left) or letter designator (R=right; L=left).
CHANGING FILTERS PROPER C ARE ER-4 MicroPro earphones have special filters that smooth the frequency • Do not expose earphones to extreme temperatures. response and prevent earwax from entering the earphones. These filters, • Avoid dropping or strong impact. Extreme shock can damage the earphones.
ABOUT ET YMOTIC RESEARCH TESTING INFORMATION ABOUT ET YMOTIC RESEARCH SPECIFIC ATIONS Frequency response: 50-10 kHz ± 2 dB; 20-16 kHz ±4 dB How We Measure Noise Isolation Acoustic polarity: + electrical = + acoustic Real-Ear-Attenuation-at-Threshold (REAT) Method—The ANSI standard Transducer type: balanced armature method of measuring the noise attenuation of hearing protectors and 1 kHz sensitivity (ER-4B/ER-4S): 108 dB SPL for a 0.79 V input...