This is a health device, the red PULSE Trainer, which features a massage function. PULSE Trainer Pulse Trainer PT_Ⅱ Homer Ion Research Institute By wrapping the special belt-shaped electrodes around your legs, it works on the muscles not just on the surface but three-dimensionally, contracting the muscles throughout your legs and lower back simultaneously, allowing you to easily exercise your muscles at home. You can choose from three modes: ● "Squat" ● "Walking" ● "Aerobic Exercise" It has only been used a few times, and the box and instruction manual are included. It's in very good condition. ☺️ - Brand: PULSE - Model Name: Trainer - Accessories: Instruction manual - Color: Red - Functions: Massage function Thank you for looking.