Variable Voltage USB Passthrough


Out of stock


  • Voltage switch: press 5 consecutive times, each time interval is less than 500 ms
  • Electronic cigarettes will be on the output voltage of 3.0 V / 3.6 V / 4.2 V / 4.8V switch, LED lights flashing five times.
  • Can be directly inserted into computer. (Output of USB port must be greater than 2amps)