The ROOM office phone booth easily connects to a standard electrical outlet. The booth’s power cord is 4 feet long with a standard 3-prong, 120 volt plug. You can plug in our phone booth to either a power bank or an extension cord if necessary. For all additional inquiries about connecting our office phone booth to a power source, do not hesitate to reach out at (646) 791-3726. We’d be more than happy to field all questions, help troubleshoot, and provide detailed instructions on how to connect your booth to the appropriate power source.