diff --git a/atat/src/asynch/mod.rs b/atat/src/asynch/mod.rs
index 8e3b6dc..6d3b046 100644
--- a/atat/src/asynch/mod.rs
+++ b/atat/src/asynch/mod.rs
@@ -35,3 +35,12 @@ pub trait AtatClient {
         Err(Error::Timeout)
     }
 }
+
+impl<T> AtatClient for &mut T
+where
+    T: AtatClient,
+{
+    async fn send<Cmd: AtatCmd>(&mut self, cmd: &Cmd) -> Result<Cmd::Response, Error> {
+        T::send(self, cmd).await
+    }
+}
diff --git a/atat/src/config.rs b/atat/src/config.rs
index 5dd08aa..eb83409 100644
--- a/atat/src/config.rs
+++ b/atat/src/config.rs
@@ -17,12 +17,7 @@ pub type GetTimeout = fn(Instant, Duration) -> Instant;
 
 impl Default for Config {
     fn default() -> Self {
-        Self {
-            cmd_cooldown: Duration::from_millis(20),
-            tx_timeout: Duration::from_millis(1000),
-            flush_timeout: Duration::from_millis(1000),
-            get_response_timeout,
-        }
+        Self::new()
     }
 }
 
@@ -32,8 +27,13 @@ fn get_response_timeout(start: Instant, duration: Duration) -> Instant {
 
 impl Config {
     #[must_use]
-    pub fn new() -> Self {
-        Self::default()
+    pub const fn new() -> Self {
+        Self {
+            cmd_cooldown: Duration::from_millis(20),
+            tx_timeout: Duration::from_millis(1000),
+            flush_timeout: Duration::from_millis(1000),
+            get_response_timeout,
+        }
     }
 
     #[must_use]