1. Compact and easy to carry 2. Long-distance stable signal transmission, sensitive remote control 3. High quality materials, durable and sturdy 4. Working frequency: 433/868MHz 5. Button battery: CR2032 6. Remote control size: about 7.2 x 3.6 x 1.3 cm 7. Base size: about 6.5 x 5.1 x 1.6 cm 8. For Marantec Digital D302 / D304 / D313 / D323
