Stomach belt for waist sizes from 75cm to maximum of 140cm, extension belt included. Contact electrodes (no need for contact gel, no replacements required). LCD display with easy to read symbols. 4 training programs (25-30 mins). Intensity adjustable from 0 up to 20 levels. Pulseform, symmetrical, biphasic square pulses. Batteries included. 3 year warranty. The device must not be used by users of cardiac pacemakers, epileptics, pregnant women, people with cardiac arrhythmia's.