[6 Vibration Modes & 4 Massage Motors] The electric massage heating pad for neck and shoulders is equipped with 4 massage motors offering 6 vibration modes to choose from. This heating pad will effectively help alleviate muscular soreness, tension, and cramps in your neck, back, and shoulders [3 Heating Levels & 2 Hours Auto-off] The back, neck, and shoulder heating pad offers 3 heat settings with a wide temperature range to meet most people’s heat needs. The 2-hour auto-off function ensures safety and peace of mind during continuous use [Fast Heating Pad] Electric heating pad with the fast-heating technology heats up fast to your desired temperature, you will immediately feel the soothing heat on your skin, helping with full back, neck, shoulder pain relief or muscle aches [Large Heating Pad] The extra-large 24" x 33" heating pad xxl offers full-body and snug coverage. This heating wrap stays in place using snap fasteners, weighted edges, and straps, also can be flexibly applied to the waist, abdomen, legs, and more [Quality Assurance] Overheat protection system, UL certification and STANDARD 100 by OEKO-TEX make better and safer user experience [Machine Washable] The controller detaches so you can machine-wash the heating pad, keeping the pad clean CAROMIO 4 Massaging Heating Pad for Back Pain Relief, Neck and Shoulders Electric Heating Pads Large Size, Full Body Back Heat Mat with Auto Shut Off, 3 Heat Levels & 3 Massage Modes (Grey, 35"x24")