A Condenser (or Capacitor) microphone is a type of microphone that uses a capacitor to create the electrical signal. Condenser microphones are more sensitive than dynamic microphones and are usually used in the studio rather than for live applications. Condenser microphones also need power. This can be supplied using a battery inside the microphone, a battery pack, or 48V phantom power supplied down the ground wire in the microphone cable from a mixing console. An example of a condenser microphone used for live applications is a Sennheiser e865.