Thank you for viewing. This is a self-made earphone cable. The wire material is 6N pure silver wire made by HAKUGEI, as shown in the fourth image. It is a 4-core cable, and the length is approximately 68cm when the ear-hook part is extended. The connectors are MMCX, and the plug is 4.4mm balanced. The plug is made by Mps from Taiwan. This is a short cable made for use with the BTR13, to be clipped to the collar of your clothes. I only listened to it for about 30 minutes after making it. I personally think it's made well, but since it's a self-made product, please refrain from purchasing if you are looking for the quality of a commercial product. It was used and stored in a non-pet, non-smoking environment. Instant purchase is available.