The model AT829cW is cardioid condenser wireless lavalier microphone. Terminated with locking 4-pin connector for A-T UniPak body-pack wireless transmitters. 55" (1.4m) cable. Two-year limited end-user warranty. This microphones small size allows them to be worn as a lavalier or hidden in loose clothing. For normal lavalier use, attach the microphone about 6" (15 cm) below the users chin. Anticipate movements that may cause the microphone to rub against or be covered by clothing and position the microphone to avoid it.