SONY electret condenser microphone. - Brand: SONY - Type: Condenser Microphone - Cable Included: Yes - Features: Electret Condenser Thank you for viewing. Based on AI assessment, as described above. Year of purchase unknown. Requires one AA battery. Has minor scratches. Functionality has not been tested. Includes box, but no manual or other accessories. The box is dirty and damaged; please comment if you don't need it. Please make your judgment based on the images. I plan to dispose of this item at some point, so please consider purchasing it soon if you are interested. I have done some basic cleaning, but will ship it as is. Recycled materials may be used for packaging. No claims or returns accepted.