A recommended performance setup
Phone (ToneBrowser) → Bluetooth speaker (30W or more recommended) → a wireless or wired dynamic mic.
To reduce audio loss, a wired connection (a 3.5mm cable) is safer than Bluetooth.
Can buskers actually use this live?
Yes. Many buskers use ToneBrowser as their main backing rig. They decide a key at rehearsal and then make a ±1–2 semitone adjustment on the day to match their voice condition.
Things to watch for
Fully charge the battery and keep some mobile data in reserve. Because playback is streaming-based, it stops if your internet drops mid-show.
Check copyright. Commercial use in street performance varies widely between local authorities and copyright associations.
Take the music into your own hands.
Download ToneBrowser for free — change the key in 30 seconds.