Optional Equipment - Inear Livepro Original-Gebrauchsanleitung

Optional equipment

Ambience port with a protective hearing filter
The earphones can optionally be equipped with an ambience port and
noise filter (1). The ambience bore with noise isolation filter (1) directs
stage and ambient sounds directly into the ear. The noise filter has a
damping strength of 14-18 dB.
Earphones with ambience bore come with sealing plugs. When
inserted, the sealing plugs achieve full noise isolation. When removed,
the sound isolation drops back down to 14–18 dB.
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