The package includes 2 collar mics with specific characteristics such as size, mic head size, battery life, color, response range, material, plug diameter, impedance, SNR, sensitivity, input voltage, operating voltage, directionality, and range. The microphone is made of APS material and is durable with a high sensitivity microphone core. It does not require a battery and can be used on various devices. The mic is suitable for live streaming, interviews, and other occasions. It has a simple design but is practical for use in live broadcasts, game voice, vlogs, and more.