A voice controlled device comprises a plurality of microphones, a communication interface, and a controller. The plurality of microphones are configured to receive voice inputs from one or more users for operation of the voice controlled device. The communication interface is configured to receive sensor data from an external device, the sensor data describing an environment of the voice controlled device. The controller is configured to operate a first subset of the plurality of microphones in response to first sensor data and a second subset of the plurality of microphones in response to second sensor data.