My new project works with the QX-18B microphone. There are two versions: one with a built-in speaker QX-18A and one without QX-18B.
The version with the speaker (recognisable by the orange buttons and model A) does not work properly. Please make sure to buy the version without orange buttons. The speaker of this device is very bad.
Please note that I am not selling these microphones.
Links on AliExpress. Or search on AliExpress for the QX-18.
AliExpress [LINK1]
AliExpress [LINK2]