The ER4S MicroPro earphones are the next best thing to live music, with noise isolation far surpassing that of active noise-canceling earphones. The ER4Ss require no batteries and can be plugged into any audio source. Their external noise exclusion allows you to hear the full dynamic range of recordings without having to play them at unnaturally high and unsafe levels.
Features: • Lightweight and portable
• High accuracy
• 35dB External noise exclusion
• 92% Response Accuracy
Specifications:
• Connectivity: Cable
• Compatibility: Home Audio, Personal Audio, Computers
• Noise isolation: 20-25 dB
• Acoustic polarity: +electrical = +acoustic
• Transducer type: Balanced armature
• Maximum output: 122 dB SPL
• Maximum continuous input: 3.0 Vrms
• External noise exclusion: 35 dB
• Response Accuracy: 92%
• Frequency Response: 20Hz to 16kHz
• Design: Ear Buds
• Sound Mode: Stereo
• Driver Unit Size: 13 mm
• Plug Type: 3.5 mm ; 6.35 mm
• Cable Length: 5 ft.
