A system for generating haptic effects to confirm receipt of a voice command, the system comprising: a microphone configured to encode into a microphone signal speech information received from a user; a housing configured to be contacted by the user; an actuator coupled to the housing, the actuator configured to output a haptic effect to the housing; and a processor (110, 160) in communication with the microphone and the actuator, the processor configured to receive the microphone signal; characterised in that the processor is further configured to: (a) attempt to recognize the speech information encoded within the received microphone signal to thereby provide recognized speech information comprising recognized one or more words or phrases; (b) if the speech information is recognized: subsequently determine if a command corresponds to the one or more words or phrases of the recognized speech information; if the speech information is recognized and the one or more words or phrases of the recognized speech information corresponds to the command, generate a first actuator signal configured to cause the actuator to output a first haptic effect, and transmit the first actuator signal to the actuator; (c) if no speech information is recognized from the microphone signal, generate a second actuator signal configured to cause the actuator to output a second haptic effect, and transmit the second actuator signal to the actuator, (d) if the speech information is recognized and no command corresponds to the recognized speech information, generate a third actuator signal configured to cause the actuator to output a third haptic effect, and transmit the third actuator signal to the actuator. a microphone configured to encode into a microphone signal speech information received from a user; a housing configured to be contacted by the user; an actuator coupled to the housing, the actuator configured to output a haptic effect to the housing; and a processor (110, 160) in communication with the microphone and the actuator, the processor configured to receive the microphone signal; characterised in that the processor is further configured to: (a) attempt to recognize the speech information encoded within the received microphone signal to thereby provide recognized speech information comprising recognized one or more words or phrases; (b) if the speech information is recognized: subsequently determine if a command corresponds to the one or more words or phrases of the recognized speech information; if the speech information is recognized and the one or more words or phrases of the recognized speech information corresponds to the command, generate a first actuator signal configured to cause the actuator to output a first haptic effect, and transmit the first actuator signal to the actuator; (c) if no speech information is recognized from the microphone signal, generate a second actuator signal configured to cause the actuator to output a second haptic effect, and transmit the second actuator signal to the actuator, (d) if the speech information is recognized and no command corresponds to the recognized speech information, generate a third actuator signal configured to cause the actuator to output a third haptic effect, and transmit the third actuator signal to the actuator. (a) attempt to recognize the speech information encoded within the received microphone signal to thereby provide recognized speech information comprising recognized one or more words or phrases; (b) if the speech information is recognized: subsequently determine if a command corresponds to the one or more words or phrases of the recognized speech information; if the speech information is recognized and the one or more words or phrases of the recognized speech information corresponds to the command, generate a first actuator signal configured to cause the actuator to output a first haptic effect, and transmit the first actuator signal to the actuator; subsequently determine if a command corresponds to the one or more words or phrases of the recognized speech information; if the speech information is recognized and the one or more words or phrases of the recognized speech information corresponds to the command, generate a first actuator signal configured to cause the actuator to output a first haptic effect, and transmit the first actuator signal to the actuator; (c) if no speech information is recognized from the microphone signal, generate a second actuator signal configured to cause the actuator to output a second haptic effect, and transmit the second actuator signal to the actuator, (d) if the speech information is recognized and no command corresponds to the recognized speech information, generate a third actuator signal configured to cause the actuator to output a third haptic effect, and transmit the third actuator signal to the actuator.