Gate Opener Remote Replacement for liftmaster with Receivers, The Gate Opener Remote Using Security+ 2.0 Technology, 4Pack,

In original packaging item, may require some assembly. See link for more details:

Compatible:  811LM and 811LMX Remote, 811LMX Remote 

Receivers: 850LM/ 860LM 

Note: Comparable link,see photo for reference This includes four total remotes

https://www.amazon.com/811LMX-Replacement-liftmaster-Compatible-Technology/dp/B0CM4RFMXN/ref=asc_df_B0CM4RFMXN