Allimity RM-ADP022 Replacement Remote Control fit for Sony DVD Home Theatre System. Model: RM-ADP022 / RMADP022 We sold is replacement infrared remote control, only put into new battery will work. Please note: if not work, please change BRAND NEW ALKALINE BATTERY instead of rechargeable battery to try, and make nothing is blocking the front of your device. Compatible with Belowing Knowing Models: DAV-DZ777 DAVDZ777 Pacakge Included: 1pcs x Replacement Infrared Remote Control Note: 1) If your tv/dvd... model number is not listed on our model list, please email to us before you order it, we will help you find the right remote control. 2) If the product you received do not work, please contact us timely, we will help you solve.