Built for sports

Coach → Catcher: Cast your voice to a tiny helmet speaker for crisp one-way instruction.

Coach → Quarterback: Send plays and adjustments to a helmet speaker on the field.

One-way only: You talk; they listen. No headsets, no accounts, no chatter.

Also handy for

Kitchen → dining room on a Bluetooth speaker at a restaurant

Parents → bonus room

Parent → tree house / barn speaker

Why you’ll like it

Zero clutter: One big Hold to Talk button

Route picker: Choose your Bluetooth speaker from the system list

Adjustable gain: Fine-tune loudness up to 3.00×

No sign-in. No ads. Works offline.

How it works

Pair your A2DP Bluetooth speaker in iOS Settings

Open One Way Radio → tap Settings to select the speaker

Hold the red button to speak; release to stop

Compatibility

iPhone running iOS 17+ recommended

Works best with A2DP-only Bluetooth speakers (e.g., BTS0011).

AirPods/earbuds aren’t the target; use a small external speaker.

Privacy

No data collected. Audio isn’t stored or sent over the internet.

Safety & League Notes

Check your league’s rules (youth/HS/college/pro) before use; some restrict on-field electronics.

Keep volume at safe levels; don’t block situational awareness.

Not for emergency communication. Not affiliated with any league.