Features ? 6.35mm to 3.5mm stereo adapters allow a 6.35mm (1/4 inch) stereo port to accept a stereo cable with a standard 3.5mm (1/8 inch) plug ? Connect headphones to audio devices such as amplifiers or AV receivers with 6.35mm socket ? Convenient and cost-effective 1/4 inch to 1/8 inch stereo adapters provide spare or replacement adapters to use on different audio systems ? 360 degree grip treads help easy plugging and unplugging Specifications ? Connector 1: 6.35mm (1/4 Inch) Stereo Jack Male ? Connector 2: 3.5mm (1/8 Inch) Stereo Jack Female Instructions ? Product Features: Audio Adapter ? Product channel: Two-channel, stereo ? Usage: Apply to the mixer, amplifier, audio amplifier 6.35mm to 3.5mm headphone plug interface, converters use microphones, speakers or electric piano, organ, drums,and so on. ? Other Name: 6.35mm to 3.5mm adapter ,or 6.5mm to 3.5mm adapter Package Included 1 x 1/4 Inch Male to 1/8 Inch Female Stereo AdapterPackage Included:1 x 1/4 Inch Male to 1/8 Inch Female Stereo Adapter. ?Plug and Play?:This 1/8 to 1/4 inch adapter No need to install software, drive, or complex connection mode, plug and play. Let you use the simplest way to enjoy wonderful music anywhere. ?Wide Compatibility?:6.35mm to 3.5mm headphone adapter fits all devices with a 6.35mm socket, compatible with Yamaha / Casio/ Roland keyboards, electric keyboards, digital pianos, guitars, home theatres, speakers, bass amplifiers, recorders, mixers, etc. 3.5mm end fits all devices with a 3.5mm jack. ?HI-FI Sound Quality?: 24K Gold-plated connectors resist corrosion and ensure a minimal signal loss. This 6.35mm male to 3.5mm female audio jack converter is made of solid brass copper. 1/4 to 3.5mm adapter is a convenient way to connect smartphones, tablets, iPods, or headphones with 3.5mm 1/8 inch plugs to audio devices with a 6.35mm 1/4 inch stereo jack, let your favorite headphones or other devices fit for most pro audio such as an amp, keyboard, piano.