1. Type of programming: Programming with the receiver 2. Number of channels: 2 / 4 3. Code: Rolling Code 4. Frequency: 433MHz 5. Rang: 50m-100m Battery: Include Battery (12V 23A ) Compatible Models for MT 2 / MT 4 for MT2A / MT4A for MT B 02 for MT B 04 for KLEIO B 02 for KLEIO B 04 for TRC1 / TRC2 / TRC3 Access to receiver required. Please make sure you have access to your receiver/opener before purchase. Note: Please make sure your remote control is in the above compatible list. (4 keys) Color: Black Material: plastic Package Contents: 1 * garage remote Only 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.