The Mystim Sultry Subs Black are versatile and obedient electrical sex toys that can be wirelessly controlled by the Mystim Cluster Buster, allowing you to customize your experience with different programs and channel numbers. With features like self-adhesive electrodes, a rechargeable Li-Ion battery, and remote control capabilities, these CE-certified toys offer a unique and customizable pleasure or pain experience when used with a Mystim Cluster Buster Device.