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+# Install.
+
+~~~
+sudo pacman -S bluez bluez-utils
+~~~
+
+## Settings.
+
+~~~
+bluetoothctl ->
+    power on
+    agent on
+    default-agent
+~~~
+
+## Scan and connected.
+~~~
+bluetoothctl ->
+    scan on
+    connect <name_device>
+    trust <name_device>
+    scan off
+~~~
+
+## Etc.
+~~~
+sudo vim /etc/bluetooth/main.conf
+    AutoEnable=true
+~~~