Caution: color: according to the color of the first picture, in the package: if the quantity is not stated in the description, the item according to the quantity and model number in the title. Multifunctional cervical massage instrument intelligent electromagnetic shock cervical physiotherapy instrument-white the product is based on the color or size of the main image of the product page. With ergonomic u-design,the use of low-frequency electrical pulse, magnetic effect, loop traction three-synchronous treatments to form high-performance composite energy field. Latest portable electronic snap-on neck massaging device for wellness and well being as well as prevention of cervical neck pain,headache, shoulder pain. The massager adopted u shape, is in accordance with the streamline and ring-type design of human neck cervical. What’s more, the neck strap can be adjusted to 360°, you can adjust it freely.5 Modes transferable and 16 kinds of intensity adjustable. You can choose any mode or intensity according to your need. To promote blood circulation, relax the local muscles, electrode pads designed to achieve double massage effect,relax massage mode, cupping mode, scraping mode, hammer tapping mode, acupuncture mode, massage mode. Features: name: cervical massager size: 288g material: abs + pc + silicone rated power: 2 watts product weight: 130.5G heating high temperature: 42 + 3 ° c heating low temperature: 38 + 3 ° c battery capacity: 1 200mah Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin