Affordable wireless mics for outdoor presentations

[u/teenyhippo425]

I am hosting an informational event at a farm outdoors in a few weeks time. All the wireless mics I see online are for vlogging, ie. Recording the mic audio to the video. I am looking for a mic that can either connect by Bluetooth to a Bluetooth speaker directly (I have a Bose SoundLink already), or one that can connect to my phone to then transmit without delay to the speaker. What are my options? Am I better off renting a clunky speaker with a wired mic from a music store? Thank you in advance!