Features: Advanced 4D intelligent movement can not only massage up and down, left and right, but also achieve precise simulation of front and back depth expansion and kneaded rhythm. Adopting an ergonomic C-shaped neck hanging design, it automatically adapts to the neck and shoulder width of different users. Built in intelligent pressure sensing design, real-time detection of neck tension, dynamic adjustment of massage intensity and speed, providing comfort experience. Adopting a zone focused design, combined with large-area constant temperature hot compress (about 42-45 ℃), effectively relieves stiffness and achieves relaxation of massage and hot compress. Built in multiple automatic programs, single button switching, supporting manual adjustment of massage parts, techniques, and intensity, meeting different needs such as daily exercise and office work. Humanized design and convenient control, can be intelligently controlled through physical buttons or mobile apps, and has a 15 minutes intelligent timer. Integrated Type C charging design, long-lasting battery life, allowing you to enjoy massage for work home or travel. Specifications: Product Component: ABS+silicone Size: 142x149x124mm/5.59x5.87x4.88inch Voltages: 7.4V Battery capacity: 2000mAh Charging time: ≈3H Gears: Three gear of intensity adjustment. Red light hot compress Brushless motor massage Package Includes: 1Pc 4D Heating Intelligent Massager note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.