diff --git a/matrix_appservice_kakaotalk/config.py b/matrix_appservice_kakaotalk/config.py
index 7493f1c..872d5d5 100644
--- a/matrix_appservice_kakaotalk/config.py
+++ b/matrix_appservice_kakaotalk/config.py
@@ -67,6 +67,8 @@ class Config(BaseBridgeConfig):
         copy("metrics.enabled")
         copy("metrics.listen_port")
 
+        copy("kakaotalk.device_name")
+
         copy("bridge.username_template")
         copy("bridge.displayname_template")
         copy("bridge.displayname_preference")
diff --git a/matrix_appservice_kakaotalk/example-config.yaml b/matrix_appservice_kakaotalk/example-config.yaml
index d4008ee..e3e7da6 100644
--- a/matrix_appservice_kakaotalk/example-config.yaml
+++ b/matrix_appservice_kakaotalk/example-config.yaml
@@ -83,6 +83,10 @@ manhole:
     whitelist:
     - 0
 
+# Config for things that are directly sent to KakaoTalk.
+kakaotalk:
+    device_name: "KakaoTalk Bridge"
+
 # Bridge config
 bridge:
     # Localpart template of MXIDs for KakaoTalk users.
diff --git a/matrix_appservice_kakaotalk/kt/client/client.py b/matrix_appservice_kakaotalk/kt/client/client.py
index 285ea59..23132e2 100644
--- a/matrix_appservice_kakaotalk/kt/client/client.py
+++ b/matrix_appservice_kakaotalk/kt/client/client.py
@@ -91,7 +91,7 @@ class Client:
     @classmethod
     def init_cls(cls, config: Config) -> None:
         """Initialize RPC to the Node backend."""
-        cls._rpc_client = RPCClient(config)
+        cls._rpc_client = RPCClient(config, "kakaotalk")
         # NOTE No need to store this, as cancelling the RPCClient will cancel this too
         asyncio.create_task(cls._keep_connected())
 
diff --git a/matrix_appservice_kakaotalk/rpc/rpc.py b/matrix_appservice_kakaotalk/rpc/rpc.py
index f3edb5f..97c5a62 100644
--- a/matrix_appservice_kakaotalk/rpc/rpc.py
+++ b/matrix_appservice_kakaotalk/rpc/rpc.py
@@ -87,8 +87,9 @@ class RPCClient:
     _is_disconnected: CancelableEvent
     _connection_lock: asyncio.Lock
 
-    def __init__(self, config: Config) -> None:
+    def __init__(self, config: Config, register_config_key: str) -> None:
         self.config = config
+        self.register_config_key = register_config_key
         self.loop = asyncio.get_running_loop()
         self._req_id = 0
         self._min_broadcast_id = 0
@@ -144,7 +145,9 @@ class RPCClient:
         self._reader = r
         self._writer = w
         self._read_task = self.loop.create_task(self._try_read_loop())
-        await self._raw_request("register", peer_id=self.config["appservice.address"])
+        await self._raw_request("register",
+                                peer_id=self.config["appservice.address"],
+                                register_config=self.config[self.register_config_key])
         self._is_connected.set()
         self._is_disconnected.clear()
 
diff --git a/node/src/client.js b/node/src/client.js
index 4f5322b..44ce8ff 100644
--- a/node/src/client.js
+++ b/node/src/client.js
@@ -362,6 +362,7 @@ export default class PeerClient {
 		this.notificationID = 0
 		this.maxCommandID = 0
 		this.peerID = null
+		this.deviceName = "KakaoTalk Bridge"
 
 		/** @type {Map<string, UserClient>} */
 		this.userClients = new Map()
@@ -480,7 +481,7 @@ export default class PeerClient {
 	 * @param {string} uuid
 	 */
 	async #createAuthClient(uuid) {
-		return await AuthApiClient.create("KakaoTalk Bridge", uuid)
+		return await AuthApiClient.create(this.deviceName, uuid)
 	}
 
 	// TODO Wrapper for per-user commands
@@ -865,9 +866,12 @@ export default class PeerClient {
 	/**
 	 * @param {Object} req
 	 * @param {string} req.peer_id
+	 * @param {Object} req.register_config
+	 * @param {string} req.register_config.device_name
 	 */
 	handleRegister = async (req) => {
 		this.peerID = req.peer_id
+		this.deviceName = req.register_config.device_name || this.deviceName
 		this.log(`Registered socket ${this.connID} -> ${this.peerID}`)
 		if (this.manager.clients.has(this.peerID)) {
 			const oldClient = this.manager.clients.get(this.peerID)