Dual power and dual time features. The SB200ss clock comes with a 110 volt power supply, will work with 220 volt transformers. Clock also has two switches one allowing user to switch from 50Hz 110 volts to 60Hz 220 volts. This feature keeps proper time with 110 or 220 volts. Another switch allow user to select 12/24 hour time.

Features include:

•Equipped with Dual Power & Dual Time features
•Complete with a loud 113db adjustable tone and volume contro