Rechargeable Li Ion battery pack with charge voltage capacity of 5.0V. Package includes USB cable and battery pack. Compatible with the 3M Worktunes Wireless Hearing Protector with Bluetooth Technology (Model #: 90542), and the Peltor Sport Tactical 300 and Tactical 500 Hearing protectors (Model #: TAC300, TAC500). 7100117134 - 00051125002790
