This is a nicely made adaptor that can be used to input stereo phono plugs to a 3.5mm line-in aux jack or to output a 3.5mm headphone or line-out jack to stereo phono plugs. However, I have deducted one star as there is no identification of left or right channels on the phono side - unlike the product illustrated - both channels are coloured yellow and no R or L is stamped on either channel. This adaptor is, however, still very good value. If easy channel identification is important to you make sure to buy an adaptor that is coloured coded for phono red and white or contact the seller first.