Specifications: 1) Distance: 50-150 meters.2) Very mini size: 5.5cm x 4.5cm x 1.0cm.3) One receiver can work with 400 codes.4) It don't interference other remotes and receivers.5) selector: With 8 dip switches user can make different combination for different remote . Input Selector: This receiver can work at AC/DC 9V~30V. However, it's better to change the PIS according to the input. If the input is great than 24V, shorten pin 2&3; shorten 1&2 if input less than 24V.Color: white + blackMaterial: ABSProgramming a new remote1) Select the correct brand for remote to be programmed by moving dip switches UP or DOWN. For example 433,92Mhz Marantec remote controls, just move Dip-switch 7 UP.2) Press the learn button. The will LED turn on.3) Press the button on the remote, the LED flashes 4 times. It means that remote control was programmed successfully.4) Repeat step 2 for another button.5)The 2-nd channel programming procedure is the same.Erase all data from the memory card: Press and hold either learn button. The LED will start flash. Keep this button pressed, until the LED will turn off. All saved data in the memory card will be erased permanently and can not be recoveredCompatible :All 433.92mhz fixed code remotes.Package Contents:1 x Receiver3 x Remote ControlOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 58 hours.