This TSTAK® Portable Bluetooth® Radio + Charger provides premium sound with a bass resonator and Bluetooth® connectivity. It’s jobsite tough, featuring IP54 water and dust resistance. A convenient phone storage compartment protects your device. A fast USB charging outlet and Aux audio output provide added convenience. This unit runs on and charges 12V MAX*, 20V MAX*, and FLEXVOLT 20V/60V MAX* lithium ion batteries. Stack it with all other TSTAK® boxes in your system. This is the perfect upgrade to your jobsite storage. ͍ ͍ Bluetooth word mark is a registered trademark owned by Bluetooth SIG, Inc.