POTENT 360° HEAT THERAPY - Heats up to 131°F (55°C)—the hottest on the market—with front and back coverage that wraps your body in soothing warmth, fully relaxing muscles and targeting pain from lower back to tailbone. POWERFUL PULSE VIBRATION - Four powerful vibrating cores hug the spine and QL muscles to ease pain and stimulate blood flow in just the right places. Targeted 120Hz frequency vibration in 3 soothing massage modes: Pulse, Steady, and Breathe WORKS IN SECONDS LASTS FOR HOURS - Heats up in seconds at the push of a button and delivers 30-minute sessions—twice as long as typical back massagers—using HeatLast infrared graphene tech for up to 3.5 hours on a single charge. HANDS-FREE, PORTABLE RELIEF - Cordless and hands-free for use while working or on the go, with convenient universal USB-C charging.