The wahl hot and cold gel pack massager is an innovative new concept offering a customisable hot or cold massage experience the reusable gel pack is easily removed from the application pouch and either frozen or microwaved before placing back into the pouch then simply activate the battery operated vibrating massage disc with the press of a button and place into the zip section in the centre of the pouch the gel pack amplifies and transfers the vibrations of the disc into a deep penetratin