Bluetooth Loudspeaker Pro is an app to live transmit your voice from Android phone mic, output to remote bluetooth speaker. That is, make yourself speak loud like using a megaphone. In addition, device mp3 music can also play at the same time with your voice. So, user can sing karaoke at home.

Bluetooth Loudspeaker Pro is the enhance version of Bluetooth Loudspeaker in Google Play Store (since 2016, with over 3800 5-stars rating), which is also from the same developer. Pro version is not just ads free, but also, voice output to bluetooth speaker is lower latency.

This pro version is now support USB type-c headset (with mic), in addition to 3.5mm wired headset. So, you can put Android device in the pocket, use headset microphone to speak or sing to the audience. Thus, both your hands are free.

Summary of the features of Bluetooth Loudspeaker Pro:
- After using bluetooth to connect to your bluetooth speaker, transmit your voice live to remote music type bluetooth speaker.
- Support phone built-in mic, usb type-c headset (with mic), and also 3.5mm wired headset (with mic).
- Voice can be record during live broadcast. Record files can be play back, share, and copy paste to other storage.
- Mp3 music in your device can be play at the same time when live. User can sing loud like karaoke. Have fun.
- Support aux line output connect to amplified speaker. User needs a 3.5mm aux cable. (Please note that the output side should be a amplified speaker, not computer mini speaker. Otherwise, the volume would be low) P.S. we recommend to use wireless method instead of using aux cable.

Who and when to use this app:
This app is suitable for all ages, who want to speak or sing loud. Use this app in classroom, conference room, outdoor, even in home party. You can practice singing loud at home, like a singer.

With this app, you can sing karaoke with microphone on hand. This is just like having a megaphone to boost your voice to remote speaker.

*Permission requirements:
For Android 12 or above: microphone usage and bluetooth (connect to nearby devices), optional media access.
For Android 11 or below: microphone usage, optional media access.

Please read before you download this app:
Bluetooth Loudspeaker Pro does not auto connect to your bluetooth speaker. User must manually connect the phone to the bluetooth speaker through Settings->Bluetooth before using this app. Tap on top left volume button to test the audio output go to the bluetooth speaker. Increase the output volume to about maximum.

2. This app must connect to an external speaker to use. DO NOT use the phone internal speaker as it will produce noisy echo voice. If the output is noisy to the bluetooth speaker, please try using a good quality wired headset. Some phone models may come with better built-in noise and echo cancellation.