A wireless microphone uses radio frequencies to connect to the speaker or other audio device, while a Bluetooth microphone utilizes Bluetooth technology. �?You're on a budget: You can get lots for your money, though the Sonos Roam 2 remains to be expensive �?that's why we advise the JBL Flip https://www.bluetoothspeaker.top/wifi-bluetooth-speaker-home-theater-2-1-wireless-speaker/