The AbTronicX2 is not an ordinary massager. This advanced unit uses gentle electronic stimulation to contract and release (exercise) your muscles. You will see your own muscles moving. There are NO vibrations or sound from the unit at all. AbTronicX2 Dual Channel Fitness Belt uniquely targets front and side (Love Handles) or back muscle groups at the same time for maximum benefits and fastest result.                                    Features                                                                            Specifications            Powered by    2 x AAA Battery (included)    <br>Color    Blue， gray    <br>Belt Length    21.65" / 55cm    <br>Package Size    9.76" x 2.40" x 3.07" / 24.8 x 6.1 x 7.8cm    <br>Weight    11.46 oz / 325 g    <br>                                                            Package Includes            1 x AbTronic x 2 Dual Channel Pro belt1 x AbTronic 2-channel Deluxe Microprocessor2 x 2 Conductive Pads For Front and Back1 x Instructional Manual1 x Diet Plan Booklet1 x Quick Start Guide