Features: new and high quality New RM-AMU166 Replacement Remote Control fit for Sony Personal Audio System. We sold is Replacement IR(infrared) remote control,no any program needed, only put into brand new battery will work well. The Remote Control Can Work with Below Knowing Models: RDH-GTK37iP GTK-X1BT RDH-GTK17iP FST-GTK37iP FST-GTK17iP RDHGTK37iP GTKX1BT RDHGTK17iP FSTGTK37iP FSTGTK17iP. Using the remote control: Aim at the sensor, avoiding obstacles, make sure to point the remote control toward the remote control sensor on the unit. Note: We only list the model numbers we have known. If you can not find yours, please contact us via email, we will help to find the correct remote control you need. Specifications: Material: ABS Colour: Black Length: 16cm Connective Technology: Infrared (IR) Battery Type: 2 x AAA batteries (NOT included) Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Remote Control (NOT including battery.)