Universal Compatibility: This remote control is compatible with all Novoferm garage door openers operating at 433.92 MHz with AES 64-bit encryption and KeeLoq rolling code technology. It provides reliable performance with Novotron transmitters for convenient access. Extensive Model Support: Compatible with a wide range of models including Siebau ATS 24, GTS 24, GTA E 403, and Novoferm port series. This remote offers a versatile solution for users with multiple garage door systems. User-Friendly Setup: Designed for easy programming with two assignable channels, allowing simple control of single or multiple garage doors. Compact and Portable Design: Lightweight keychain design makes it easy to carry in pockets, purses, or bags, ideal for everyday use without compromising functionality. Compatibility Notice: Confirm that your garage door opener or existing transmitter is compatible with 433.92 MHz frequency and the specified encryption type before purchasing. Color: White & Black Material: Plastic Note: Product appearance and printed text may vary slightly between batches, but this does not affect functionality. Package Contents: 1 x Garage door opener remote Lighting and monitor settings may cause slight color variations between the product image and actual item. Measurement may vary by +/- 1-3 cm.