diff --git a/README.md b/README.md
index 9d969bd..287c143 100644
--- a/README.md
+++ b/README.md
@@ -29,6 +29,9 @@ IO::Stty - Change and print terminal line settings
      # What settings do we have anyway?
      print IO::Stty::stty(\*STDIN,'-a');
 
+     # Or with no arguments (same as -a):
+     print IO::Stty::stty(\*STDIN);
+
 # DESCRIPTION
 
 This is the PERL POSIX compliant stty. 
@@ -365,9 +368,11 @@ Linux and 255 on macOS/BSD).
 
         IO::Stty::stty(\*STDIN, @params);
 
-    Returns a string for query options (`-a`, `-g`, `-v`), `undef` if
-    the handle is not a terminal or if the terminal parameters could not be
-    read, and a true value on success when setting parameters.
+    When called with no parameters, returns the current terminal settings in
+    human-readable form (equivalent to `-a`), matching POSIX `stty`
+    behavior.  Returns a string for query options (`-a`, `-g`, `-v`),
+    `undef` if the handle is not a terminal or if the terminal parameters
+    could not be read, and a true value on success when setting parameters.
 
     From comments:
 
diff --git a/lib/IO/Stty.pm b/lib/IO/Stty.pm
index af61fb0..55ce885 100644
--- a/lib/IO/Stty.pm
+++ b/lib/IO/Stty.pm
@@ -70,6 +70,9 @@ IO::Stty - Change and print terminal line settings
      # What settings do we have anyway?
      print IO::Stty::stty(\*STDIN,'-a');
 
+     # Or with no arguments (same as -a):
+     print IO::Stty::stty(\*STDIN);
+
 =head1 DESCRIPTION
 
 This is the PERL POSIX compliant stty. 
@@ -483,9 +486,11 @@ sub _parse_char_value {
 
     IO::Stty::stty(\*STDIN, @params);
 
-Returns a string for query options (C<-a>, C<-g>, C<-v>), C<undef> if
-the handle is not a terminal or if the terminal parameters could not be
-read, and a true value on success when setting parameters.
+When called with no parameters, returns the current terminal settings in
+human-readable form (equivalent to C<-a>), matching POSIX C<stty>
+behavior.  Returns a string for query options (C<-a>, C<-g>, C<-v>),
+C<undef> if the handle is not a terminal or if the terminal parameters
+could not be read, and a true value on success when setting parameters.
 
 From comments:
 
@@ -500,8 +505,6 @@ From comments:
 sub stty {
     my $tty_handle = shift;    # This should be a \*HANDLE
 
-    @_ or die("No parameters passed to stty");
-
     # Notice fileno() instead of handle->fileno(). I want it to work with
     # normal fhs.
     my ($file_num) = fileno($tty_handle);
@@ -537,6 +540,14 @@ sub stty {
 
     # OK.. we have our crap.
 
+    # No arguments: display current settings (POSIX stty behavior).
+    unless (@_) {
+        return show_me_the_crap(
+            $c_cflag, $c_iflag, $ispeed, $c_lflag, $c_oflag,
+            $ospeed,  \%control_chars
+        );
+    }
+
     my @parameters;
 
     if ( @_ == 1 ) {
diff --git a/t/01-functional.t b/t/01-functional.t
index 2c5a7c9..da9fb20 100644
--- a/t/01-functional.t
+++ b/t/01-functional.t
@@ -176,6 +176,21 @@ subtest '-a output format' => sub {
     like($output, qr/intr\s*=/,       '-a shows intr control char');
 };
 
+# ── 3b. No-argument display (POSIX stty behavior) ───────────────────
+
+subtest 'no arguments returns current settings' => sub {
+    my ($pty, $slave) = fresh_pty();
+    my $output = IO::Stty::stty($slave);
+    ok(defined $output, 'no-arg stty returns output');
+    like($output, qr/speed \d+ baud/, 'no-arg output contains speed line');
+    like($output, qr/echo/,           'no-arg output mentions echo');
+    like($output, qr/icanon/,         'no-arg output mentions icanon');
+
+    # Should be identical to -a output
+    my $a_output = IO::Stty::stty($slave, '-a');
+    is($output, $a_output, 'no-arg output matches -a output');
+};
+
 # ── 4. Combination settings ──────────────────────────────────────────
 
 subtest 'raw mode' => sub {
@@ -432,6 +447,13 @@ subtest 'non-tty handle returns undef' => sub {
     close $fh;
 };
 
+subtest 'non-tty handle with no args returns undef' => sub {
+    open my $fh, '<', '/dev/null' or die "open /dev/null: $!";
+    my $result = IO::Stty::stty($fh);
+    is($result, undef, 'non-tty with no args returns undef (no die)');
+    close $fh;
+};
+
 # ── 9. iexten flag ─────────────────────────────────────────────────────
 
 subtest 'toggle iexten flag' => sub {