Kaunosta Headphone Adapter 3.5mm Socket to 6.35mm Jack Plug 1/8 inch Female to 1/4 inch Male Audio Stereo Adapter Gold Plated Converter for Amplifier,Electric Piano, Guitar,Synths, Radio Mixer(2 Pack) 1.The headphone jack adapter compatible with most audio and home stereo equipment, such as amplifier, mixing console, electric piano, guitar, kayboards, AV receivers, Synths, Radio mixer, digital piano, electric drums set, Clavinova, home theatre devices, easy to modernise any really old electronics. 2.Connectors Type: Connector 1: 6.35mm (1/4 Inch) Male Connector 2: 3.5mm (1/8 Inch) Female 3.Made of solid brass copper, gold-plating connectors resists corrosion and ensures minimal signal loss, with a much longer service life compared with those plastic connectors with metal painting. 4.Package includes:2 Pcs 6.35 Male to 3.5mm Female Connector Please confirm what type of connector your device is before purchasing.