Sennheiser dyn. headphones, 70 Ω, closed ear, expandable headband, steel core cable, single-sided, 1.5m long, 3.5mm angled jack, adapter

The HD 25 is very light and offers a high level of comfort even when worn for long periods. The DJ headphones are considered the "standard" worldwide - whether in a small club or on a big stage. Overview
The HD 25 is a dynamic headphone with a closed design, which means that ambient noise is better shielded than with the open design. This robust headphone is therefore particularly suitable for listening to music and speech in noisy environments, e.g. for monitoring PA systems, for use in outdoor broadcasts or for studio monitoring.

characteristics
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High sensitivity due to lightweight aluminum voice coil
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Also suitable for very high sound pressure levels
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Lightweight, comfortable fit thanks to expandable headband
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Robust, detachable, single-sided cable
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Rotatable earpiece for one-ear listening