Right angle 1/4 male to 1/8 female adapter, 90 degree 6.35mm 3 pole male to 3.5mm female stereo TRS headphone audio converter connector. This adapter can be applied to electric pianos, guitars and other musical instruments, mixers, professional audio, speakers, microphones, mobile phones, MP3 players, and the like. Headphone adapters can also be used in most professional audio and home audio equipment such as amplifiers, mixing consoles, home theater equipment, amplifiers or AV receivers.