diff --git a/docs/SUPPORTED_DEVICES.md b/docs/SUPPORTED_DEVICES.md
index 6368e21..87f4529 100644
--- a/docs/SUPPORTED_DEVICES.md
+++ b/docs/SUPPORTED_DEVICES.md
@@ -5,4 +5,4 @@
 List of supported printers [here](./and2270.pdf)
 
 ### - Zywell
-Not oficially supported, but compatible with EPSON ESC/POS commands.
+Not oficially supported, but compatible with EPSON ESC/POS commands. ( Not all function could work )