New RM-AAU027 Remote Control fit for Sony Home Theatre System. Model: RM-AAU027 / RMAAU027 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:  STRDG520 HT7200DH RM-AAU021 SS-WP7500 STRKM7600 HTDDW5000 HTDDW5500 HTDDW7600 HTDDW8600 HTSS2300/C STR-KM5000 STR-KM5500 TA-KMSW500 SS-MSP7500 SS-CNP7500 SS-SRP7500 HT-DDW5000 HT-DDW5500 HT-DDW7600 HT-DDW8600 STR-KM7600 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!