This 12V high-quality replacement power adapter is compatible with the TC-Helicon VoiceTone R1 Effects pedal.
The plug fits a US 2-pin wall power socket.
This power adaptor is designed to meet the power specification of the VoiceTone R1 Effects pedal referred to here - it is the correct voltage, amperage and tip size.
It meets and exceeds all US safety standard, features overvoltage, overcurrent and short circuit protection to protect your device
MyVolts 12V Power Supply Adaptor Compatible with/Replacement for TC-Helicon VoiceTone R1 Effects Pedal - US Plug Review