A:Answer Hello binkbonk! The Z150 2.0 Multimedia Speakers DC power plug isn't sold separately on Logitech's website, but you do have a 2-year warranty on the product, and our Customer Service sometimes have access to more parts than what's listed on the website, so I would check out the product page https://support.logi.com/hc/en-us/articles/360025074953-Warranty-Multimedia-Speakers-Z150 and choose the "Contact Us" option. They need to be plugged in to a wall outlet.