New RM-AAU023 Remote Control fit for Sony Home Theatre System & Multi Channel AV Receiver. Model: RM-AAU023 (RMAAU023 ) 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 TV models:  STR-DH700 STR-DG720 HT-SF2300 HT-SS2300 HT-DDWG800 HT-DDW8500 HT-DDW7500 STRDH700 STRDG720 HTSF2300 HTSS2300 HTDDWG800 HTDDW8500 HTDDW7500 Pacakge Included: 1pcs x Replacement Remote Control Note: 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. Thanks for your supporting in advance!