Product Description:The 510 Digi Stick Battery merges modern digital functionality with compact performance. Featuring a built-in screen, variable voltage, and universal 510-thread compatibility, this slim battery is great for those who like precision in their sessions. With adjustable settings and USB-C charging, the Digi Stick delivers fast power-ups and clean, controlled hits. Product Specification: Voltage: Variable Display: Digital screen Thread: 510 Design: Slim stick-style Charging: USB-C Variant Black-10Pack,Black Package Contains/Includes: 1x 510 Digi Stick Battery