Solution · pro audio

Wireless input for the board.

Balanced Bluetooth for mixers, powered PA and studio monitors — line level in, phantom-safe, gig-ready battery.

Professional rigs accept Bluetooth through a balanced line-level receiver — not a consumer dongle. A mixer channel, a powered PA or a studio monitor pair takes the XLR output of the receiver like any other line source, and the phone on the soundboard becomes the playback rig for walk-in music, backing tracks or guest playlists.

The pro-specific details matter: the output is XLR male line level (it neither needs nor supplies +48V phantom power), the DAC path is quiet enough for reference monitors, and a 16-hour battery covers the longest gig without a PSU run to the stage.

Guests want their playlists Walk-in music from a phone, without handing anyone the board or a cable across the stage.

Long runs pick up hum Unbalanced 3.5mm dongles buzz over ten-meter runs. Balanced XLR does not.

Phantom power accidents A condenser-mic channel with +48V can damage consumer sends — a line-level XLR out is the safe answer.

Three boxes, zero new cables.

Phone / laptopLDAC or aptX HD source, 30 m of range

blafili XLR / B3Balanced line-level out, phantom-safe

Mixer · PA · monitorsAny line channel, gain staged as usual

Line level, not instrument level

Everything in this scene hangs on one phrase: line level into a line input. The blafili XLR’s output is a balanced male XLR at line level, so it treats the mixer channel exactly like a keyboard sub-out or a CD player would. Set the channel to line, phantom off, and gain-stage with a loud track until the channel meters sit healthily below clip. Bluetooth itself should never be the thing that clips — if it does, back the phone volume down; the encode stage is the only place distortion can enter.

Where it fits in the rig

Walk-in music is the obvious job, and it is a real one: the bar phone pairs, the PA covers the room, nobody crosses the stage with a cable. The quieter jobs matter more: an installer feeding a distributed-audio rack over balanced lines without pulling a new run; a rehearsal room where the backing-track phone lives in the control booth; a studio lounge pair of monitors that take streaming without touching the console. And the reverse path exists too — the Bicast transmitter takes the mixer’s output and hands it to Bluetooth speakers or a photographer’s headphones at the back of the room, with aptX Adaptive keeping the link stable at range.

The right box for this room.

View all

4.9

blafili XLR Bluetooth Audio Receiver

$40.99~~$59.99~~

Flagship4.9

blafili B3 Bluetooth Music Receiver

$109~~$149~~

4.7

blafili Bicast XLR Bluetooth Audio Transmitter

$44.99

Why these. The XLR receiver is the stage pick: balanced male XLR out, 16-hour battery, USB-C while-charging. The B3 adds optical/coaxial for install racks and an OLED that shows the live codec. The Bicast transmitter is the reverse path — send the mixer output to Bluetooth speakers or in-ears anywhere in the venue.

Set up once, forget the box.

Plug into a line channel. XLR into any channel or stereo input; set the mic/line switch to line.
Phantom off on that channel. The output is line level — +48V is unnecessary and unkind to line inputs.
Gain stage like a DI. Set channel gain with a loud track; Bluetooth should clip the channel, not the DAC.
Charge between sets. USB-C keeps it alive during the gig and tops the battery for the next one.

Owners in the same seat.

St Antony The Great Coptic Church

Sep 22, 2026

★★★★★★★★★★

this is by far the best 100 bucks I ever spent. here is why . the sound is amazing. it gives you XLR outs that works with my sound system in a lot of settings . the sound coming out of those XLR outs are crystal clear. and there is absolutely no noise even with the large professional speakers such as QSC k12, and line array.
I used them with behringer wing, Midas and presonus and I was very impressed. I also used them with my home surround and stereo systems . with high end unforgiving speakers such as B&W, Vienna Acoustics etc
but the best part is the customer service.
I bought one device, more than a year ago and suddenly the xlr outs stopped working while both the analog and optic outs still worked . because I loved it so much I bought another one the same day but before it arrived I decided to send a message to the customer service and told them what happened
. within couple of hours I get a response from them saying " can you let us replace it for free" and of course I said yes , they asked me for the order number and a picture of the device which I provided. then they sent me a brand new one and told me to keep the old one even though I told him I bought a new one they still sent me the replacement. This is great customer service and a great product. Now I will keep the Three devices since I love t mm so much.
thank you guys very much.

blafili B3 Bluetooth Music Receiver →

Jose Luis Carmona Gómez

Sep 17, 2026

★★★★★★★★★★

Exelente. Buenas calidad de audio y su batería muy duradera

blafili XLR Bluetooth Audio Receiver →

Jesse CRX

Sep 15, 2026

★★★★★★★★★★

Bought this unit accidentally thinking it had audio inputs for optical but it is output only. But I I liked how well it performed so much I kept it anyway. It really breathes new life into your streaming. Just make sure you’re streaming at high quality from the base source. Automatically pairs silently and looks fantastic. Just wish it had optical or coax digital inputs for a cd player, but regardless you get a lot of bang for your buck. Highly recommended.

blafili B3 Bluetooth Music Receiver →

Asked in this room.

How do I connect a phone to a mixer wirelessly?

A Bluetooth receiver with balanced XLR output, such as the blafili XLR, plugs into any mixer line channel — pair the phone and it behaves exactly like a wired playback device.

Does the blafili XLR work with phantom power?

It neither needs nor supplies +48V. Its XLR output is male, line level — engage phantom only on channels that truly carry condenser microphones.

Is Bluetooth latency usable live?

For walk-in and background playback, yes. For in-ear monitoring or time-critical cueing, stay wired — that is honest engineering, not a limitation we hide.