Box was opened, but it was never used. Needed something cordless and missed the return window on Amazon. Amazon Description: -Extra Large Heating Pad for Back Pain Relief: The neck heating pad measures 22" x 37" -Smart Heating & Timer Settings: Tailor your experience with 6 temperature settings (40℃/104℉~60℃/140℉) and 4 timers (30, 60, 90 and 120 minutes), this shoulder heating pad allows you to customize the heat and time to your preference and the specific intensity of your pain. -The 2H auto-off feature ensures safety, preventing prolonged use and providing peace of mind -Weighted & Wearable Design, Adjustable Fit: This weighted neck and shoulder heating pad is filled evenly with micro-glass beads, which conform to the contour of your shoulder & back and stay in place, delivering consistent warmth. - 7-foot cord allows you to adjust positions with ease while relaxing on your bed, couch, or office chair -Soft Heating Pad, Easy Maintenance: Made from luxurious super soft plush, offering a comfortable experience during use. The back heating pad is machine washable. Simply detach the electric controller to clean and extend the lifespan of your heating pad while maintaining its form.