Ernie Ball USB-C Rechargeable Batteries by Paleblue - available in 9 volt and AA. Delivering consistent, full-voltage performance with direct USB-C charging, LED indicators, charging cable, and storage case. Designed for musicians and creators who rely on dependable power both on stage and in the studio. We are proud to join @pale_blue_earth in its mission to end single-use batteries and bring pro-level rechargeable battery technology to musicians! https://www.ernieball.com/guitar-accessories/us