The Numark Signature Series Pro Cartridge CC1 is a high-performance record cartridge designed for DJs. I used it for about 2-3 months, but not very often. I'm selling it because I've switched to a new cartridge. There are no playback issues. However, it has been stored by a non-professional, so please understand that it is non-refundable and non-returnable. Feel free to comment. - Brand: Numark - Model: CC1 - Series: Signature Series - Type: Pro Cartridge - Manufacturer: inMusic Japan Co., Ltd. Thank you for looking.