Cozy warmth: The Comfort Heat technology provides gentle warmth to the face, neck, and shoulders, helping to spread comfort throughout the body. Strong performance: The built-in lithium-ion battery lasts up to 6 hours on a single charge, making the wireless neck heater ideal for extended use. Lightweight and compact design allows for hands-free wear, delivering comfortable warmth during work, walking, outdoor sports, or other outdoor activities. Flexibly adjustable: The soft, flexible heating panel ensures a comfortable fit, while the adjustable neck strap allows for a personalized fit. Features 4 adjustable heat settings for customized comfort. Color: Gray & Black Material: ABS Size: 16 x 5 x 17.6 cm Package Contents: 1 x Neck Heater, 1 x USB Cable Note: Light reflection and differences in display screens may cause slight variations in color compared to the actual product. Measurement may vary by +/- 1-3 cm.