The smart neck massager knead deeply and relax the shoulders and neck. Large 1500mAh bettery relaxing massage without dropping the line. The built-in 1500mAh battery can last up tp 60 minutes on a single full charge. Intelligent voice broadcasting easy to operate. built-in voice broadcast reminder, no need to take off the massager to know the current situation. Modes and gears, with simple buttons, massage is confortable and enjoyable.