How to replace the battery in Sony TV remote - YouTube
RMT-TX200E, RMTTX200E SONY TÁVIRÁNYÍTÓ
TV Remote for Sony (Smart TV R - Apps on Google Play
Amazon.com: RM-AAU104 Replace Remote fit for Sony AV Receiver 3D Home Theater Audio Video System STR-DH520 RM-AAU116 HT-DDW3500 STR-K3500SW STR-KM3500 STR-KS380 STR-KS470 : Electronics