audio-technica AT-PMX5P Portable Multi-Mixer I was able to confirm basic sound output on all channels. I have not checked for long-term operation or sound quality, so please purchase with the understanding that these aspects have not been verified. A compatible, third-party AC adapter will be included. Please check the website for other detailed specifications. ⭐️ Condition There are scratches typical of used items, but it is relatively clean. ⭐️ Included Items Third-party AC adapter #AudioInterface