Features: This slimming massager uses dual contact muscle stimulation technology to make your muscles contract and relax， strengthen and sculpt muscles. Dual contact muscle stimulation technology gives your muscles a great workout Gently makes your muscles contract and relax， strengthens and sculpts muscles Completely safe to use， pain free Wireless system Super compact design fits in the of your hand or underneath your cloth 6 Muscle Toning Programs and 10 Intensity Levels Can exercise two muscle areas at the same time and get twice the results 100 times muscle impulse per minute Helps to burn your fat and makes you slim Specifications: Output Voltage: DC 6V Frequency: 2~250Hz Mode: 6 Main unit dimensions: 8cm x 8cm/3.15'' x 3.15'' Controller Size: 6cm x 4cm x 1.5cm/2.36'' x 1.57'' x 0.59'' Pack including: 1 x Slimming Massager