diff --git a/README.md b/README.md
index fb9914b..c813893 100644
--- a/README.md
+++ b/README.md
@@ -2,3 +2,20 @@
 Enable headphone jack on Clevo W230SS and W230SD after suspend
 
 **Ubuntu package for [init-headphone](https://github.com/Unrud/init-headphone)**
+
+## Usage
+```
+$ init-headphone --help
+Version: 0.6
+usage: init-headphone [init]
+usage: init-headphone effect0
+usage: init-headphone effect1
+usage: init-headphone effect2
+usage: init-headphone effect3
+usage: init-headphone effect4
+usage: init-headphone effect5
+usage: init-headphone effect6
+usage: init-headphone mute
+usage: init-headphone unmute
+usage: init-headphone --help
+```
diff --git a/init-headphone b/init-headphone
index 7f22ff9..e8d7eaa 100644
--- a/init-headphone
+++ b/init-headphone
@@ -9,8 +9,14 @@ import locale
 
 __all__ = ["init_headphone", "set_mute", "set_effect"]
 
-VERSION = "0.5"
-SUPPORTED_SYSTEM_PRODUCT_NAMES = ["W230SS", "W230SD", "Mythlogic Chaos 1313-A", "HUMA H3"]
+VERSION = "0.6"
+SUPPORTED_SYSTEM_PRODUCT_NAMES = [
+    "W230SS",  # Clevo W230SS
+    "Mythlogic Chaos 1313-A",  # Mythlogic Chaos 1313-A
+    "HUMA H3",  # MONSTER HUMA H3
+    "M4",  # Eurocom M4
+    "W230SD",  # Clevo W230SD
+]
 SUPPORTED_I2C_BUS_NAMES = ["SMBus I801 adapter at f040"]
 I2C_CLASS_PATH = "/sys/class/i2c-dev"
 DEV_BASE_PATH = "/dev"