One end of the cable has a 6.5mm (also known as 1/4 inch) male connector used for larger audio devices like guitars or professional audio equipment. The other end has a 3.5mm female connector, which is the standard size for headphones and other consumer audio devices.This adapter allows you to connect a headset or microphone with a 3.5mm plug to a device that has a 6.5mm input.
 It's useful for situations where your audio source (like a microphone) has a smaller plug, but your recording equipment or amplifier has a larger input.this adapter cable is a versatile accessory for audio enthusiasts, musicians, and anyone needing to connect audio devices with different-sized jacks or connectors. It can be used for a variety of applications, including guitar recording, microphone connections, and more, while potentially providing improved signal quality due to the gold-plated connectors.