Bose speakers come in a wide range of models, and the power supply specifications can vary significantly depending on the specific model that you have. In general, Bose speakers are designed to operate on a variety of power supply voltages and frequencies, depending on the region in which they are sold. Some models are equipped with an external power supply that plugs into a wall outlet, while others are powered by batteries. To determine the power supply specifications for your specific Bose speaker, you will need to refer to the documentation that came with the product or visit the Bose website for more information.