Capture a single nearby speaker with a cardioid lavalier microphone that reduces sound arriving from the sides compared with an omnidirectional pickup pattern. The body-worn microphone format keeps the capsule close to the talker, making it suited to spoken-word reinforcement, presentation audio, interviews and lectern-free presenters. Cardioid directionality can help prioritize the intended voice where adjacent talkers, room reflections or loudspeaker spill are concerns. The condenser capsule requires operating power and supports either battery power or phantom power. This gives installers a choice between a self-powered microphone connection and a phantom-powered XLR microphone path. The XLR connection supports integration with microphone inputs on mixers, preamplifiers, recorders and installed sound systems that accept balanced microphone cabling. Western Digital VX75-1-FF-AGP2 is described as a condenser cardioid lavalier microphone with battery and phantom-power operation. Select it where the microphone must remain attached to clothing while maintaining a directional vocal pickup pattern. Confirm the available microphone input, phantom-power configuration and required mounting accessories before installation, particularly when connecting to systems that provide phantom power globally across multiple XLR inputs.