Genie 12 dip switch compatible with GPT90-1, GT912, MAT90 and any genie 12 dip switch remote. Light Green One-button Key chain 12 dip switches 390 MHz A23 12V Battery Compatible with Genie"s GPT90-1, MAT90, GT912. Test/operate LED Keychain model, Light green case, Power: Long-life 12 V battery, Frequency: 390 MHz 12 Dip switches found in battery compartment