1. A first wearable electromyography (“EMG”) device for use in conjunction with a second wearable EMG device to control an electronic device, the first wearable EMG device comprising: at least one EMG sensor responsive to muscle activity of a user of the first wearable EMG device and provide at least one signal in response to a detected muscle activity; a processor communicatively coupled to the at least one EMG sensor, the processor to in use process the at least one signal provided by the at least one EMG sensor; at least one communication terminal communicatively coupled to the processor to send communication signals to both the electronic device and the second wearable EMG device and to receive communication signals from at least the second wearable EMG device; and a non-transitory processor-readable storage medium communicatively coupled to the processor, wherein the non-transitory processor-readable storage medium stores: processor-executable EMG processing instructions that, when executed by the processor, cause the processor to process the at least one signal provided by the at least one EMG sensor, first processor-executable communication instructions that, when executed by the processor, cause the processor to communicate with the electronic device, and second processor-executable communication instructions that, when executed by the processor, cause the processor to communicate with the second wearable EMG device.