Merlin Wireless Wall Button 15 x 20 x 20mm White & Green SKU: 284325 MODEL: E128M Error. try again later You've successfully joined the club $ 88 each Mitre 10 SAvailable at selected stores. Check your local store for details Variants A popular option for homes with internal access to the garage. The remote wall button can be placed in a suitable location in your home and garage. Features and benefits No wiring. Can open up to two garage doors. Frequency: 433.30 / 433.92 / 434.54Mhz AM. Encryption: Security+ 2.0.