diff --git a/lib/adb.js b/lib/adb.js
index e3d3c67..20959c1 100644
--- a/lib/adb.js
+++ b/lib/adb.js
@@ -59,6 +59,16 @@ function ADBObject() {
             return "";
         }
     };
+
+    // download a file from target device 
+    this.pull = function(id, path) {
+        return SHELL.exec([this.binPath, "-s", id, "pull", path, "data\\"]);
+    };
+
+    // upload a file to target device
+    this.push = function(id, filename, dstpath) {
+        return SHELL.exec([this.binPath, "-s", id, "push", "data\\" + filename, dstpath]);
+    };
 }
 
 exports.create = function() {