1. First of all, you need to understand the following: [Universal Compatibility] If your old remote control is similar to this product, it is compatible with your air conditioner, providing a convenient solution for many different brands. 2. [Compatible Models] This remote control is specially designed for the RG57B-BGE series and its variants. Its comprehensive compatibility with these specific models makes it the ideal accessory for precise control of your air conditioner. 3. [Improved LED Backlight] The RG57B-BGE remote control features a new, improved design with LED backlight. This makes the buttons clear and easy to see, making it easier to use at night or in dark environments. The improved LED backlight provides additional convenience during remote control. 4. [Simple and Efficient Operation] This remote control provides easy and complete access to all buttons, allowing precise control of your air conditioner. It is powered by 2 AAA batteries (not included), ensuring stable and