Replacement remote control for Caixun 4K TV EC43S1A, EC50S1A, EC55S1A with voice button; also compatible with Sansui and Qlive Q55UA221B - Compatibility - Fits Caixun 4K TV models EC43S1A, EC50S1A, EC55S1A that include a voice button - Also compatible with Sansui and Qlive Q55UA221B - Easy setup - No setup or programming required - Simply insert 2 brand-new alkaline batteries to operate - Design and performance - All buttons are easily accessible - Made of ABS plastic for durable, everyday use - Comfortable to hold for extended use - Practical use scenarios - Use in the living room to control a Caixun 4K TV from the sofa - Serve as a reliable spare remote for Sansui or Qlive TV setups in another room - Ideal for movie nights or gaming sessions, allowing quick access to power, volume, and navigation without needing the original remote