Product information:

Product name: 3-key garage door remote control
Material: Plastic
Color: Black
Frequency: 390 mhz
Battery: 3V CR2032
Code: Features Rolling Code Technology
Compatible model: 971LM 972LM 973LM 139.53681B
Size (LxWxH): 80x47x17mm
Product weight: 45g
There are three types:310/315/390，315 is 371LM，There are 81LM and 971LM for 390mhz，The three frequencies are 891LM

Packing list:

1 * Remote control host