93. Bluetooth ConnectionIn addition to playing streamed audio via a local network,Mu-so and Mu-so Qb can play audio over a Bluetoothwireless connection from appropriately equipped playbackdevices.Mu-so is configured by default with an “open” Bluetoothconnection so does not require “pairing” with a specificplayback device. To connect to a Bluetooth playback deviceopen the playback device Bluetooth setup page and selectMu-so BT XXXX or Mu-so Qb BT XXXX in the list of availabledevices. After a short delay Mu-so will be available to theaudio apps on the device for playback selection.Note: Bluetooth wireless connections have a relativelylimited range. A maximum of around 10 metres is typicalin domestic environments, however physical obstructionsin the transmission path may result in reduced range.Note: The default Mu-so network and Bluetooth nameincorporates the last four characters of the unique MACaddress printed on a label on the underside of each unitadjacent to the mains input socket.Bluetooth connection can be switched to a secure formatvia the Settings menu of the Naim App. A secure Bluetoothconnection means that connected devices need to bespecifically “paired” in order to stream audio. To switch tosecure Bluetooth connection follow the steps below:• Open the Naim App settings menu and select InputSettings > Bluetooth Security. Select BluetoothSecurity “on”.• Touch and hold the Mu-so touch panel input icon untilthe Bluetooth icon begins to blink.• Open your Bluetooth playback device Bluetoothsettings page and select “Mu-so-XXXX”.Your Mu-so and playback device will now be securelypaired. No other Bluetooth device will be able to connect toMu-so unless it is similarly paired.Note: If multiple devices are paired, Mu-so will play fromthe first device from which it receives a stream. If youwish to stream from a different paired device, the firstdevice must be disconnected.Note: Up to eight Bluetooth devices can be paired withDiagram 9Bluetooth setupMu-so simultaneously. If a ninth device is paired the oldestpaired device will be deleted.Note: Mu-so can be forced to disconnect and delete apaired Bluetooth device via the Naim App settings menus.Diagram 9 illustrates Mu-so Bluetooth setup on an Androidmobile device. Bluetooth setup on an iOS device is similar.The following Section 3 paragraphs are equallyapplicable to both Mu-so and Mu-so Qb.