Massage 5 Modes For One Automatic Therapy , One Body Slimming and 3 Single Manual Modes. 8 Intensity Levels Selection. Timer Setting 5 - 30 Minutes Single Channels Up to 2 Electrode Pads Can be Applied 2 Electrode Pads Included Power source: Battery "AAA " x 3 Size/Weight: 121 x 75 x 27 mm / 150 gm