This TSTAK Portable Bluetooth Radio + Charger provides premium sound with a bass resonator and Bluetooth connectivity. Its 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 60V MAX batteries, including FLEXVOLT. 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. 3 Year Limited Warranty. 1 Year Free Service Contract. 90 Day Money Back Guarantee.