Specification: Color: Blue, Pink, White. Material: ABS, silicone. Voltage: DC5V. Power supply: USB. Battery capacity: 650mah. Charging time: 2-3 hours. Using time: 2 hours. Features: massage instrument, prevention of cervical spondylosis, physiotherapy machine, multifunctional. Product size: 17.5*13*13cm. Note: Use wet towel to wet the neck before using to avoid possible sense of piercing pain. How to use: 1) Before use, first wet the skin of the cervical spine with a wet towel, and then put the product around the neck, make the electrode close to the skin of the cervical spine, adjust the position of the product, turn on the host and adjust the appropriate massage intensity and mode. 2) Press [ON/OFF] button to enter the default mode, the default gear position(0 gear). 3) Press [M] button to switch mode, 6 modes available. 4) Press [+]/[-] button to adjust intensity. 5) Press the middle button for heating up function. Features: 1. Pleasant Massage Effect. A helpful massage tool to improve the blood circulation, soothe tired muscles and relieve aches thoroughly. 2. 360° Floating Design. Designed ergonomic construction way. The neck massage tool fits cervical spine seamlessly, providing thorough and efficient massage. 3. 4D Shape. 4 massage heads arranged scientifically, precisely covering multiple segments of cervical spines. C-shape adjustable massage tool enables more personal use. 4. Upgraded Technology. Built-in magnetic stones care for health, TENS pulse gets deeply into muscle for full massaging. Along with 38-42℃ hot compress function, it ensures deep and comprehensive massage. 5. 6 Massage Modes. Auto mode, pulse manipulation, hot compress manipulation, acupressure manipulation, knead manipulation, beating manipulation, this device offers various massage enjoyment according to your needs. 6. Users Friendly Design. Come with a remote control for super easy operation, large-capacity battery, this device can support 2-hour continuous using. 7. Wonderful Life Companion. Lightweight and small, so it is space-saving and easy to be carried along, you can use it at home, office and travel, enjoying massage wherever and whenever. Package List: 1X Massage Instrument. 1X RemoteControl. 1X Connecting Cable. 1X English Manual