Q: I hearing a hum/rattlesnake sound while vaping this new device M Class. It is normal ?
A: Under the Joule mode, the chip is constantly controlling the temperature and making adjustments to maintain the setting. As a result, there may be a slight hum or buzzing while it is working, this is normal, Please do not worry about it.
Because the technology of M Class is the newest, and supports lower sub-ohm resistance, we suggest a 0.06-0.12 ohm base on Temco Ni-200. You can get the perfect experinces when you build the atomizer with the resistance 0.06ohm. However, if using the resistance above 0.3 ohm or Khanthal atomizers there will be variance and some unexpected behaviors may be observed in Joule mode.