HP's wireless headphones are cheap because they don't have a cord in the first place. That is, there is no wire, so its manufacturing cost is relatively low.
HP's wireless headphones are cheap, and the second reason is that its technology is not complicated and its structure is relatively simple. And it also communicates through Bluetooth, which is a relatively simple way of communication, so its manufacturing cost is also quite low. In addition, the Bluetooth headset it also lacks a lot of parts.