If you are using a Bluetooth mono device, why don't you try to use 'Mono mono pro'?It's the best handy app to handle Bluetooth mono routing. Simple and easy to use.* You can listen music or movie sound through Bluetooth mono device.* You can set to connect automatically Bluetooth mono devices to your mobile phone.* You can enjoy music continously after end a call.* You can control the connection of your Bluetooth mono device easily with controller.* If your music app does not work properly, try with other app.Enjoy watching videos and playing music with your Bluetooth mono device.