Fast and easy pairing - The RMF-TX520U remote pairs quickly with your Sony smart TV. To pair, press and hold the VOL- and Voice Assistant buttons for two seconds. The remote will enter pairing mode automatically. No additional steps are required. If you run into any pairing difficulties, contact us and we will respond within 12 hours. Batteries and manual - 2 AAA (LR3) batteries and the user manual are not included. Wide compatibility and model coverage - This remote is designed to work with a broad range of Sony TV models. Compatibility includes: - RMF-TX520U RMFTX520U - XR series: XR-50X90J, XR-50X94J, XR-55A80J, XR-55A84J, XR-55A90J, XR-55X90J, XR-55X94J, XR-65A80CJ, XR-65A80J, XR-65A84J, XR-65A90J, XR-65X90J, XR-65X94J, XR-65X95J, XR-75X90J, XR-75X94J, XR-75X95J, XR-75Z9J, XR-77A80CJ, XR-77A80J, XR-77A84J, XR-83A90J, XR-85X95J, XR-85Z9J - KD series: KD-43X80J, KD-43X85J, KD-50X80J, KD-50X85J, KD-55X79J, KD-55X80CJ, KD-55X80J, KD-55X85J, KD-65X79J, KD-65X80CJ, KD-65X80J, KD-65X85J, KD-75X79J, KD-75X80CJ, KD-75X80J, KD-75X81J, KD-75X85J, KD-85X85J, KD-43X80J, KD-43X85J, KD-50X80J, KD-50X85J, KD-55X79J, KD-55X80CJ, KD-55X80J, KD-55X85J, KD-65X79J, KD-65X80CJ, KD-65X80J, KD-65X85J, KD-75X79J, KD-75X80CJ, KD-75X80J, KD-75X81J, KD-75X85J, KD-85X85J, KD-85X91J - In addition, the remote is compatible with a wide selection of Sony BRAVIA and related models listed under the two series above What this remote does for you - Simplifies TV control with a single, universal accessory for many Sony TVs - Eliminates the need to search for the original remote when upgrading or replacing - Provides reliable pairing and straightforward operation with minimal setup Usage scenarios - Living room replacement: You want a single remote that works with multiple Sony TV models in the family room. Quick pairing and broad model support reduce setup time and confusion for guests. - Home theater or bedroom setup: Use the RMF-TX520U as a dedicated remote for a Sony TV in a secondary room. The fast pairing process makes it easy to connect a spare TV without technical steps. - Multi-device compatibility in a studio or showroom: Demonstrate or test different Sony TV models using one remote. The wide compatibility list covers many XR and KD series models for convenient testing and usage. Note - This description preserves the original brand, model coverage, and pairing functionality. It does not add external features beyond what is specified.