ddHiFi DJ65M 6.35mm Female to 3.5mm Male Audio AdapterddHiFi DJ65M 6. 35mm Female to 3. 5mm Male Audio Adapter Design explained ln order to ensure that music signals are transmitted without loss, it's the first time that a socket from a HiFi desktop device has been used for an adapter This socket has excellent conductivity, combined with the CNCed metal casing,which contribute to an accessory that really fits into the audiophile environment. Widely applied TRS(short for Tip, Ring and Sleeve) stands for