MANARAS Garage Door Gate Remote Opener (MTM-1000) - powered by 1x 12V A23 LR23A battery (comes with used battery) - used, in good working condition - $20 firm PRODUCT DESCRIPTION: Manaras MTM-1000 Mini (10 Dip Switch) is a single-channel garage door remote control that operates on the 313 MHz frequency. The Manaras MTM-1000 Mini is perfect for use on community gates with individual garage door opener systems.