Charging should be USB-CArvosana 4/5
The build quality feels great and it is a great massager. It also came with a nice carrying case made out of fabric. What I don't like about it is that it comes with a charger that uses a bullet connector. The charger is also 16.8V which is the charging voltage for a 4S li-ion battery. I am guessing some money was saved with this design, but for a user, it would have been better if it used USB-C. If I ever lose or break this charger, I don't know how easily I will find a replacement charger.
TobbeMalm