Hanging Neck Heating And Cooling Massager:Both sides: semiconductor cooling and heating, available in cold and warm seasons. Back side: hot compress + low frequency pulse massage (scraping, pressing and beating). Enjoy massage in four seasons,and relieve various neck problems.. The appearance is stylish and lightweight, with a hanging neck design, mini and easy to carry. The net weight of the body is only 300g. Large Battery Capacity:4000mAh large battery capacity, Type C Charging ,battery life is about 2 hours at high gear. The massage intensity is more stable, feels comfortable, and the massage is more comfortable to wear. Dual Control Method: Host button + Magnetic remote control, easy and comvenient for you to use. Specification: Charging interface: Type C Applicable parts: neck Working voltage: DC5V/2A Maximum power: about 10W Battery: 4000mAh polymer Battery life: about 2 hours (high gear) Cold compress: third gear (down 10-15C/down 7-10C/down 4-7C) Hot compress: 39C/42C/45C for neck side; 42C for cervical vertebra Massage gear: 1-9 gears Control method: host button + remote control Ambient light: color breathing light Massage mode: scraping, pressing, beating Function: semiconductor cold and warm massage, pulse electrotherapy massage Size Chart: material: plastic Size: 179x162x47mm/7.05x6.38x1.85inch Package Includes: 1 Piece Smart Neck Massager 1 Piece Manual 1 Piece Type C Charging Cable 1 Piece Remote Control Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping