[Warm Tips] This garage remote control is a replacement accessory, not an original. Refer to the compatibility list below for your reference. [Garage Remote Control Replacement] Our garage remote control operates on 433.92MHz and is compatible with Novoferm Novotron 524, 522, 502 MAX43-2, 504 MAX43-4, 512 MIX43-2, 514 MIX43-4, MNHS433-02, MNHS433-04, MCHS43-2, MTR43-2. [Compatible Garage Opener List] Works with Novomatic 403, 413, 423, 553, 803, Novoport I/II/III, and Tormatic GTA 601/602/611/612/701/702/703/711/712/802/803. [Lightweight and Portable] With an elongated and compact design, this remote control can be attached to a keychain using the included lanyard, keeping it easily accessible. Color may vary slightly between production batches but does not affect functionality. Color: As shown in photo Material: Plastic Package Contents: 1 x Remote Controller or 2 x Remote Controllers The package includes only the items listed above; other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.