NOT COMPATIBLE WITH PAINLESS TENS REMOTE VERSION:These electrodes are not suitable for the Painless TENS remote version. Instead, please search for RC340 electrodes. COMPATBILE WITH THE MED-FIT 2 WIRELESS TENS MACHINE: Additionally suitable for use with the Med-Fit 2 Wireless TENS unit. STUD ELECTRODE COMPATIBILITY: Designed for use with the Painless TENS machine, utilizing a stud electrode fitting for optimal functionality. REUSEABLE AND SELF-ADHERING: The Electrodes can be used repeatedly and adheres to the skin without additional adhesives or attachments. WIRELESS TENS ELECTRODES FOR LOWER BACK TREATMENT: Specifically designed for use with Med-Fit Wireless TENS and Painless TENS machines, offering targeted treatment for lower back pain.