Connect Microphone to Sing. 6.5mm microphone connects phone and computer.Phone Connects Amplifier. Enjoy marvellous HiFi sound quality.Guitar connects computer. Easy to tune tone and record.Different Cable Lengths Are Available. 0.5m, 1m, 1.5m,2m, 3m, 5m.Applicable Devices. Use for 3.5mm devices and 6.5mm devices, including phone, laptop, tablet, MP3, microphone, amplifier, speaker, electric guitar and sound console.