The cervical spine massager fits the neck curve, 4 massage heads, more comprehensive massage area, constant temperature hot compress + physical therapy. Combination of various modes, experience more massage pleasure. Features: The streamlined surround design automatically adapts to the neck curve, weakens the pressure, and fits tightly to the neck without slipping off. 4 massage heads, accurately cover the 4-7 cervical vertebrae peripheral massage, just cover the common pain areas of the cervical vertebra. Stretchable design, elastic arm technology, good rebound, strong toughness. Multiple modes: pulse mode, beat mode, kneading mode, acupressure mode, automatic mode. Constant temperature hot compress + physical therapy, massage effect is better. Humanized multi-gear strength adjustment, more comfortable to use. 304 stainless steel electrodes, delicate and non-allergic. One-key switch, simple and convenient operation, the whole family can use it with confidence. Care for the cervical spine at any time, during work, rest, travel, in daily life. Specifications: Material: ABS Color: White Built-in Lithium Battery Capacity: 800mAh Package Weight: 400g / 14.11ounces Package Size: 215 * 100 * 65mm / 8.46 * 3.94 * 2.56in Package List: 1 * Cervical Spine Massager 1 * Charging Cable