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Executive Summary - Specification and Supply PositionTL;DR - The Mistairhome WL-PBS07R (PRO) is a 40 mm full-range driver with a neodymium motor and a wide-dispersion cone driven by a Class D output stage with a talk-through priority on the call path, rated 8.5 W with a 22 W peak and producing 85.5 dB at 1 m across 88 Hz to 20 kHz; the pack is 1800 mAh lithium polymer giving 9.1 hours at half volume against 62 minutes at maximum volume, recharging in 2.1 hours from empty over···