I have some experience with this. I have a Switchcraft 318BT plugged into my studio mixer, so anyone with an iPhone can pair to it and play back what they want to hear on good speakers.

There are problems, though.

1st, it's mono. It plugs into an XLR jack that supplies power (so no batteries; that's good) which makes it one channel. At least it sums the Left and Right coming from the iPhone.

2nd, it's Bluetooth. As such the range is severely limited. It starts to wink out even when I walk into the hall, with one bedroom wall separating the iPhone and the Switchcraft. Bluetooth specs say 30' but I don't count on more than 10. This Sweetwater ad says 100'. Nope, not even half at best.

Still, it's VERY handy to have this and never worry about it.

https://www.sweetwater.com/store/detail/318BT--switchcraft-audiostix-318bt-xlr-bluetooth-receiver?mrkgcl=28&mrkgadid=1233692239&rkg_id=0&campaigntype=dsa&campaign=aaDSA&adgroup=1233692239:DSA%20-%20Studio%20&%20Recording&placement=google&adpos=1t1&creative=316784071842&device=c&matchtype=b&network=g&gclid=Cj0KCQiAr93gBRDSARIsADvHiOqTbVQ-3y8f0pvZrdi6qJRiX34awrejhcRyvkWj-v7Hc3JHGV6yWyQaAhxVEALw_wcB


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.