If your phone doesn’t have a 3.5mm headphone port, you will need to use a Lightning or USB-C adapter. (My Pals has been tested with the “Apple Lightning to 3.5 mm Headphone Jack Adapter” and “Google USB-C to 3.5mm Adapter.”)
If you don’t have an adapter, you can connect the My Pal audio cable to the headphone port of a computer or laptop.