Description: This product can promote local blood circulation and release local muscles. This product has LED indicator and an easy operation system, which is clear to use and more humanistic. You can choose any modes in accordance with your requirements. It has a wider suitable range of the crowd. It can achieve the effectiveness of diminishing inflammation, detumescence, analgesia and allaying tiredness. According to the design of human engineering, this aesthetic and scientific product is in accordance with the neck curve. Specifications: Material: plastic. Color: show as pictures. Size: 18*11.5cm. Battery type: 2 x AAA battery (Not included). Charging type: buily-in 1050mAh battery, charging through USB cable. Neck circumference: 30-48cm. Notes: 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. Package include: Type one: 1 x Electric Magnetic Neck Massager. 2 x Massager Pads. 1 x User Manual. Type two: 1 x Electric Magnetic Neck Massager. 2 x Massager Pads. 1 x USB Cable. 1 x User Manual. Type three: 1 x Electric Magnetic Neck Massager. 2 x Massager Pads. 1 x USB Cable. 1 x Remote Controller. 1 x User Manual.