What type of plug adapter does a Whish require? May 12, 2020 15:50 The type of plug adapter needed is a USB Type-A, 5v DC power supply Related articles What are the electric power specs for your sound machines? What is the wireless range for the Duet Sound Machine? How do I set the timer on the Whish sound machine? How do I turn the sound on for my Travel Mini? Can I use my portable sound machine while it’s plugged in and charging?