Bluetooth Loudspeaker3.3 - App Store

Do you want to boost your voice in the public, or love to sing karaoke? If you have a portable bluetooth speaker, this app is a must for your iPhone / iPad.

Bluetooth Loudspeaker is an app to amplify your voice output to your wireless connected bluetooth speaker. That is, your iPhone becomes the microphone and the bluetooth speaker becomes a remote loudspeaker within 10 meters distance. As this app can run at background, your iPhone can play mp3 music and let you sing karaoke at the same time.
What can you do with a microphone and remote loudspeaker? Who needs this mic and remote loudspeaker? Some examples are:
- sing karaoke at home or anywhere,
- teaching in a classroom or lecture room,
- street performance, live show,
- speaker in a large conference room,
- garage sale, outdoor sale, pop-up store sale, or other sales promotion,
- tour guide at the hot spot,
- fan of a sport team, who sing loud to support the favourite sport team in the stadium,
- outdoor activities,
- works as volume booster or megaphone for your speech,
- beach party, birthday party, exhibitions, celebrations and many more cases.
With this app, you have a wireless microphone on your hand!
Read me first:
1. User must connect to a bluetooth speaker when using this app for voice output. Do NOT choose device internal speaker, as there will be some unwanted echo noise.

2. This app will NOT bluetooth or airplay connect to your remote speaker. User has to manually connect to the speaker first (through Settings > Bluetooth). Then open this app.

3. When using this app to output voice to connected bluetooth speaker, user can put this app as background job and run another music app such as Apple Music (or any music app). To stop, go back to this app and tap the stop button.

4. This app does NOT support wired headset / headphone or bluetooth headset or line-out.

5. This app does not download or play online mp3 music or video.

6. Remember to turn device output volume to about 80-90% maximum (at top right icon), and mic gain to about 40-50% (at bottom slide bar).

7. Some iPad mic is located on top of the device, while most iPhone default mic is at the bottom.

From iOS 14 and on, there will be an ads tracking dialog popup once, which is required for new iOS user privacy purpose. We do not collect any data from user or device. Feel free to contact our email support.

Version History Add language 3.3 Jul 17 Bugfix and enhancement. 3.2 Feb 4 Minor enhancement. 3.1 Jan 8 - This is a major upgrade for using latest Apple API frameworks: better performance.
- New feature: optional voice recording during voice pass through to bluetooth speaker.
- Bug fix for mic gain (auto disable if device is not supported) 3.0 06/09/2025 performance enhancement 2.10 01/05/2022 Performance enhancement. 2.8 04/13/2021 Bug fixes 2.7 02/24/2021 - Update for iOS 14 devices. 2.6 11/28/2020 - Minor enhancement. 2.5 10/01/2020 Minor bug fix. 2.4 08/10/2020 Bug fix 2.3 04/05/2020 Enhance User Interface. 2.2 12/05/2019 - Fix for UI text color issue on iOS 13 dark mode.
- Fix app crash on iPad OS 13.1.2.
- App screen is always on, prevent app go to sleep mode / phone lock. 2.1 10/09/2019 New feature: access local device music to play (not yet for iCloud music) in the app. At the same time, your voice is boost using bluetooth speaker. That means, you can sing karaoke without leaving the app. 2.0 08/29/2019 Also support for iPad. Please note that most iPad models, microphone is on top middle or top corner. 1.2 08/03/2019 minor enhancement on user interface 1.1 07/03/2019 1.0 05/23/2019