Video demo of Bluetooth Loudspeaker iOS app - to show how iPhone connect to bluetooth speaker and transmit voice to the speaker. Optional, user can also play device mp3 music at the same time. That is, user can sing and play music together, output to the bluetooth speaker.
User can get this app free from Apple App Store.
[ Ссылка ]
Also available for Android version on Google Play Store:
[ Ссылка ]
![](https://i.ytimg.com/vi/MqgxkI-YRAI/maxresdefault.jpg)