EMS NECK MASSAGER 1.Battery:Li-ion battery3.7V 1200MA 2.nput:5V 1A 3.Rated power:5W 4.Incharging time: 2hours 5.Using time: around 3 hours 6.6 pulse massage modes 7.With 15 level intensities 8.with heating function 9.Timer : 15 minutes 10.One swith control for easy using
