The Pocket CHIP doesn’t come with internal speakers. It has the GPIO pins for audio, but nothing is hooked up. On the CHIP itself there is a 3.5mm audio jack for connecting headphones, and you can pair a Bluetooth speaker. On the old NTC blog there was a post back in 2016 about adding an internal speaker using a fairly inexpensive PAM8403 amplifier and a speaker. You can find a mirror of the old post from the NTC blog on archive.org
