3M Peltor MRX21A1WS7 WS Alert XPV Solar Powered Headband Headset. 3M Catalogue #:MRX21A1WS7. 3M™ PELTOR™ WS™ ALERT™ XPV Solar Powered Headset is a Bluetooth® MultiPoint headset with noise-cancelling microphone and self-charging by photovoltaic power.
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