It depends on which unit you use.
FREEDOM7 – Is attached to the ankle via a neoprene pouch with velcro attachments. Both electrodes are encased in the 2-meter long antenna.
SURF7 – The Surf unit is not attached to the body, it is mounted on the tail of the surfboard via a mounting board, deck grip can then be stuck to the mounting board, the 2 meter antenna that houses the electrodes then hangs out the back. The mounting board can be unscrewed so that you can recharge the unit or mount it on another surf board.
SCUBA7 – The main housing of the unit can be worn on the thigh (a strap is provided), in a BC pocket, or attached to the front of the BC via a BC strap or D ring. The antenna electrode is worn on the ankle, with the antenna protruding out the front, so that it rests on the fin. The pad electrode is secured to the back of the scuba cylinder via the BC securing strap (cam band).
FREEDOM+ Surf – The removable power generator is located in the tail pad, and the electrodes in a decal antenna on the bottom of the surfboard. The unit is not worn by the user, it is attached to the surfboard.