diff --git a/README.md b/README.md
index 3b75ea6..ed6d726 100644
--- a/README.md
+++ b/README.md
@@ -83,7 +83,7 @@ This printer uses Bluetooth LE (GATT) to send labels & retrieve its status. It d
 
 `2b3d` part in the UUID may not be future-proof, but so far all produced printers of the same model seems to share the same UUID.
 
-To discover the nearby printers, filter for the service UUID or/and check for the MAC address range. This printer has a MAC address in range of `58:CF:79:00:00:00` and `58:CF:79:FF:FF:FF`, which this MAC range block seems to be owned by Espressif Inc. according to Bluetooth vendor list.
+To discover the nearby printers, filter for the service UUID or/and check for the MAC address range. This printer has a MAC address in range of `58:CF:79:00:00:00` and `58:CF:79:FF:FF:FF` or `DC:54:75:00:00:00` and `DC:54:75:FF:FF:FF`, which these MAC ranges block seems to be owned by Espressif Inc. according to Bluetooth vendor list.
 
 All data structures are explained below so it can be used as a future reference.
 
@@ -287,4 +287,4 @@ RESULT[3] = 1B 52 + STATUS[1]
 
 ## Extras
 
-The printer will automatically print its MAC address if power button was pressed long.
\ No newline at end of file
+The printer will automatically print its MAC address if power button was pressed long.
diff --git a/dymo_bluetooth/bluetooth.py b/dymo_bluetooth/bluetooth.py
index 32dc482..f28235e 100644
--- a/dymo_bluetooth/bluetooth.py
+++ b/dymo_bluetooth/bluetooth.py
@@ -48,6 +48,11 @@ def is_espressif(mac : str):
     start_block = 0x58_CF_79 << 24
     end_block = start_block + (1 << 24) # Exclusive
     mac_value = int(mac.replace(":", ""), base = 16)
+    if (mac_value >= start_block) and (mac_value < end_block):
+        return True
+    start_block = 0xDC_54_75 << 24
+    end_block = start_block + (1 << 24) # Exclusive
+    mac_value = int(mac.replace(":", ""), base = 16)
     if (mac_value >= start_block) and (mac_value < end_block):
         return True
     return False
@@ -181,4 +186,4 @@ def create_code_128(text : str):
     imwrite = ImageWriter()
     imwrite.dpi = 200
     code = Code128(text, writer = imwrite)
-    return convert_image_to_canvas(code.render(text = ""), dither = False, trim = True)
\ No newline at end of file
+    return convert_image_to_canvas(code.render(text = ""), dither = False, trim = True)