I received this as a gift, but I only used it once and it didn't suit me, so I've been storing it at home. Bottom Belt Brand: SIXPAD Color: Black Size: L Manufacturer: MTG Charging time: Approximately 3 hours. Set contents: Bottom Belt unit: 1 Dust cover: 1 Adjuster (for waist): 1 Adjuster (for knees): 2 Quoted from the following site: ● Your hips start to lift with every use. Hip-up training from now on doesn't require strenuous exercise or a lot of sweating. By wearing the SIXPAD Bottom Belt and pressing the start button in your daily life, you can support muscle training. While doing housework or various other things, you can achieve a balanced and ideal hip shape. ● Efficiently approach the three muscles necessary for hip-up. The hips are one of the largest muscles in the body. The gluteus maximus, gluteus medius, and hamstrings each play an important role in hip-up, and it is necessary to train them in a balanced way. SIXPAD Bottom Belt uses EMS* training to efficiently approach these muscles. ● An efficiently calculated 23-minute auto program. The total time of the training program, set based on the training methods of Emeritus Professor Toshio Moritani of Kyoto University and world-class top athletes, is 23 minutes. The intensity gradually increases over time, automatically switching from warm-up to training and then cool-down, and automatically turning off the power. ● The evolved SIXPAD expands with IoT*. Your daily muscle training becomes visible. Being able to do it every day. To increase the "continuity" that is important for muscle training, it is equipped with Bluetooth for even greater convenience. By linking with a smartphone application, you can visualize your muscle training and provide a more enjoyable training time, from beginning to end, and towards tomorrow. Type...EMS