?HELPFUL TIPS?1.Wet the neck before use, make sure the two conductive sheets of the massager are tightly attached to the skin of the neck appropriate location so that the user experience will be better. 2.Do not use it together with other medical electronic products,such as cardiac pacemaker, artificial heart lung and other medical devices, otherwise it may cause misoperation of medical devices, which may cause unnecessary injuries. ? LIGHTWEIGHT & PORTABLE? High elasticity and toughness plastic material made it weighs 130g(0.28lbs) Only, which is skin-friendly and easy to carry, comes with a standard Type-C USB connector and 1500mAh built-in large-capacity battery,It can support to more days. Anyone can use it whenever and wherever, at home, office, airplane, car, etc. ?INTELLIGENT & VOICE BROADCAST? Our intelligent neck massager built-in 3 heating modes(low heat, medium heat, high heat), effective relieve neck soreness, shoulder tiredness, release your body press. This intelligent neck massager also has a voice broadcast function, which will remind you by voice broadcast when you switch modes and intensity, bringing you a better experience. The product will automatially shut down atter 1 minute if not used, recommending not be turned on abnormally. ?6 MODES &16-LEVELS INTENSITY?Our wireless neck massager Built up with 6 modes (Auto Combination Mode 1, Auto Combination Mode 2,Scraping Mode, Press Mode, Roll Mode, Pound Mode),16-level intensity to meet your multiple massage demands, which helps to relieve neck pain, shoulder tiredness and promote blood circulation.But the neck massager can't increase the intensity level when it is not wear on the neck. ?Tens Electric Pulse Neck Massager?Our intelligent neck massager can penetrate deep into the skin through tens electric pulses, from muscles to blood vessels to nerves, thoroughly massage your tight neck. Helps relieve neck pain and promote blood circulation, so as to achieve a sufficiently deep relaxation effect of neck muscle tension and fatigue, especially suitable for people who often sit for a long time to work or study.