This is a genuine Sony remote control model RMT-B119A, tested and fully functional. It is compatible with various Sony models, including BDP-S3100, BDP-BX39, and BDP-BX510, among others. The remote control has a wireless range of 5-10m and can be used with devices within this range. It operates on infrared technology and has a black color finish. The remote control is sold as a single unit and does not come with batteries. Please feel free to ask me any questions you have. Thanks
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