Featuers: 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. Electromagnetic pulses help firm and define your core with strengthening muscle contractions. Muscle training when working in office, cleaning house, or any place you want. Specification: Smart Abdominal Fitness Paste Material: Polyurethane(PU) Smart Body Building Mode: M1-M6(6 mode) Battery: Built-in polymer lithium battery Controller Power Supply: USB charging Charging Time: approx.20 minutes Work Voltage: DC 3.3V Charging Voltage: DC 5V Package Included: 1 x USB Cable