is a physical device may have buttons or knobs may have an LCD screen may have a power indicator may have an LED indicator may have a joystick may have a microphone or headset input may have a USB port
control which has is a physical device control which may have buttons or knobs control which may have an LCD screen control which may have a power indicator control which may have an LED indicator control which may have a joystick control which may have a microphone or headset input control which may have a USB port