Antari M-31 Wireless Remote for M-8 Fog MachineThe M 31 Wireless Control Module, as its name suggests, adds wireless operation to your M 8 Fog Machine. The M 30PRO delivers radio frequency technology you can depend on. You have the flexibility of wireless technology and the functionality you expect from Antari. Specifications Cable Length : 2 M Working Distance : Wireless, up to 50 M Connector : 5 Pin XLR For W 1 Wireless Transmitter, there are 2 radio frequencies can be chosen. They are 315MHz