Universal Compatibility: This remote control is compatible with all garage door openers operating at 433.92MHz with 64-bit encryption and KeeLoq rolling code technology. It ensures reliable performance with Novotron transmitters for seamless access. Extensive Model Support: Compatible with a wide range of models including Siebau ATS 24, GTA E 403, and Vivoport series. This remote provides a convenient solution for users with multiple garage door systems. User-Friendly Setup: Designed for easy programming with two assignable channels, allowing simple operation of single or multiple garage doors. Compact and Portable Design: Features a keychain design that is small and lightweight, ideal for carrying in pockets, purses, or bags without compromising functionality or style. Compatibility Notice: Please verify that your garage door opener or handheld transmitter is listed in the manufacturer's compatibility guide before purchasing. This remote works only with devices using 433.92 MHz frequency and matching encryption requirements. Color: White & Black Material: Plastic Note: Product appearance and printed text may vary slightly between batches, but these differences do not affect performance. Package Contents: 1 x Garage door opener remote (Other accessories not included) Note: Lighting effects and monitor settings may cause slight color variations between the image and the actual item. Measurement tolerance: +/- 1-3 cm.