. Zinc alloy case, wear-resistant, pressure-resistant, noise-resistant. This adapter is used with professional audio and video equipment. Also often used with studio equipment. It can be used for microphone connections/audio electronics, amplifiers and application wiring. Ideal for XLR audio cable connection of microphones, players, mixing consoles, stage lights, guitars, etc. Connection A: 3-Pin XLR JackConnection B: 3-Pin XLR JackOlor: BlackPackage List:1pc 3-Pin XLR Female to Female Microphone AdapterNote:Please refer to the measurement. A small measurement error is acceptable within the normal range. There may be a slight color difference due to monitor, camera or other factors, please refer to the physical item.