This back massager chair pad is a vibration only device designed to fit on a chair or bed. It uses 4900 RPM motors located in the waist and seat areas to deliver enhanced vibration massage for daily comfort. The unit does not include kneading or rolling nodes, so it focuses on surface level vibration rather than targeting deeper tissue. You can customize massage by selecting the area to treat neck, upper back, lower back, seat, or combine multiple zones for a full back and hip focused session. It comes with 5 programmed massage modes and 3 intensity levels to tailor the experience, from light relief to stronger stimulation. Graphene heating technology provides more even warmth through enlarged heating pads, warming the back, hips, and thighs and offering soothing heat within minutes. The heating warms rapidly, reaching maximum intensity in about 0 minutes. Safety and reliability features include an overheat protection thermostat, UL listing, and an auto shut-off after 30 minutes of use. The control features are designed for simple operation, with straightforward adjustments for area, mode, and heat settings. This massager is suitable for use during work breaks, at home on a chair or couch, or while reclining in bed, making it a practical option for daily muscle comfort. Color: Black.