QN-RD291X 4 Buttons learning code remote control for roller shutter doors Feature Functions and Features 1. Can replace your original remote and same operation with the original LiftMaster one; 2. Compatible with original liftMaster remote; 3. Same operation as the original ones 4. Transmits in 433.92Mhz; Model No.:QN-RD291X Frequency:Fixed Code Modulation:FSK Operatiing Range:50-80M Button Durability:100 000 times Battery: CR2016 2 Gurantee:2 years OEM and ODM Services:Yes Application:Garage Door HS Code:85269200 Others:Battery and keychain included;
