diff --git a/doc/device-api.txt b/doc/device-api.txt
index aed6bed..c6395fc 100644
--- a/doc/device-api.txt
+++ b/doc/device-api.txt
@@ -103,24 +103,6 @@ Properties	string Address [readonly]
 			If the Alias property is unset, it will reflect
 			this value which makes it more convenient.
 
-		string VendorSource [readonly] [optional]
-
-			Vendor source numeric identifier.
-
-			Only "bluetooth" and "usb" sources are supported.
-
-		uint16 Vendor [readonly] [optional]
-
-			Vendor unique numeric identifier.
-
-		uint16 Product [readonly] [optional]
-
-			Product unique numeric identifier.
-
-		uint16 Version [readonly] [optional]
-
-			Version unique numeric identifier.
-
 		string Icon [readonly] [optional]
 
 			Proposed icon name according to the freedesktop.org