This is a NICEHCK NX8 (4.4mm plug). I purchased this used, in excellent condition, from a flea market site. The sound quality is undoubtedly good. However, it didn't quite match my preferences, so I'm unfortunately putting it up for sale. The previous owner's usage time is unknown, and I've used it for about 5-6 hours. The earphones themselves are in good condition and clean, but there may be some minor scratches and wear from use. Please check the images. Everything in the images is included. I only used the earphone units. The ear tips are as they were sent from the previous owner, and I believe some are not the original ones. After a simple cleaning, I will pack it with cushioning material and ship it. This is a used item, so please refrain from purchasing if you are sensitive to such things. No returns or refunds, please. *I am also listing this on other flea market sites, so please be aware that I may cancel the sale depending on the timing. [Brand] NICEHCK [Model] NX8 [Type] Canal-type earphones [Driver Configuration] 1DD+6BA+1PZT Hybrid 8 Drivers Thank you for looking.