Sony Stereo Headphones Black MDR-XB550 Body only. Both audio and playback buttons work OK. There are no noticeable scratches on the body, but please consider that it is a used item and check the images carefully. Also, the ear pads show signs of use. Please refrain from purchasing if you are sensitive to used items. Feel free to comment if you have any questions or would like additional images! Thank you for viewing. The following is AI-generated for search purposes: SONY (Sony) Model Number: MDR-XB550 Color: Black It increases the airtightness from the driver unit to the eardrum, and the duct optimizes the movement of the low-frequency diaphragm. It directly transmits the overwhelming amount of deep bass that keeps an accurate rhythm and its groove feeling. It ensures vibration resistance and atmospheric pressure resistance, and the extra bass diaphragm with high compliance realizes powerful deep bass reproduction. #SONY (Sony) #MDR-XB550 #Smartphone/Home Appliances/Cameras