Specifications Hign-concerned Chemical:None Frequency:433 MHz Package:Yes Wireless Communication:IR Use:TV Origin:Mainland China Certification:CE,FCC Smart Tv Remote Control for Samsung Matching Smart Series TV Connect with USB Receiver through 2.4G Substitute productwithout touch pad function and voice function The shape of mouse function change to cursor function.It can control the cursor disapper or wake up Other functions are same as the original control with SMART HUB, M-SCREEN,SEARCH, KEYPAD and SOURCE. Samsung Compatible Controller Setup Connect the USB receiver to one of the TV's USB ports. A message appears stating that the device is connected. Press and hold buttons "Return2" and "Guide3" at the same time and hold for 3 seconds The LED on the remote will light up, then the LED will blink 3 times.