Features: * Made of high quality Polyurethane(PU) material,close to your skin,good touching feeling and non-toxic. * A physical workout device for enhancing your muscles,make you can good body shape without even lifting a finger. * Using advanced technology, scientifically exercising your muscles will not harm your body. * According to suitable power and speed on body by low frequency,which make a rhythm and sort impetus on body. * Choice 6 modes,and it will get off power automatically after 12 minutes from stop when you forget power off. * Adhesive gel pad,if you feel uncomfortable when training,you can use wet towel to clean dirty side for regaining pasting again at moment. Spcification: Frenquence:1~100Hz Working Current:9.8mA(MAX) Training Time:12 Minute(Per training time) Patch:19 x 17cm Stimulator:7.5 x 5.8 x 1.8cm Shoulder Stciker:20 x 7cmMore comfortable: With height adjustment, lift the viewing angle to a horizontal level, to reduce the fatigue caused by long-time working and protect your cervical spine, more healthy and comfortable way.Silicone mat design, anti-skid and stable.Hollow out design can help to keep your laptop from overheating, cool rapidly, work effectively.Compatible with most laptop, tablet, and more devices.Foldable, easy to carry and save your space.More comfortable: With height adjustment, lift the viewing angle to a horizontal level, to reduce the fatigue caused by long-time working and protect your cervical spine, more healthy and comfortable way.Silicone mat design, anti-skid and stable.Hollow out design can help to keep your laptop from overheating, cool rapidly, work effectively.Compatible with most laptop, tablet, and more devices.Foldable, easy to carry and save your space. Package Included: 3 x Stimulator 1 x Abdominal Patch 2 x Shoulder Stciker 1 x English Manual