The 3.5/6.5MM audio selector is specially designed for customers with multiple audio sources and outputs. It is simple to use, avoids repeated plugging and unplugging, and protects your device from damage. 6 in and 1 out R/L stereo audio switch: the 3.5/6.5MM audio switcher can switch from 3.5/6.5MM audio signal inputs to one 3.5/6.5MM signal output. (Note: Only one input can be played at a time.) 1 in 6 out stereo audio switcher:the 3.5/6.5MM audio switch supports 1 channel of 3.5/6.5MM audio signal input, and can select 1 of 6 outputs, which can be switched to a power amplifier or active speaker, DVD, mobile phone, or phonograph. Volume control: equipped with a volume adjustment function, you can adjust the output volume without changing the sound quality and enjoy a high-quality experience. No external power supply required: plug and play, no power required; it has a sturdy full metal casing with interfaces on the same side, beautiful and . Suitable for home audio or small recording studio. You can switch between multiple signal sources and adjust the volume for your convenience. Available signal sources: DVD, gramophone, preamplifier, CD player, set-top box, mobile phone and other audio signal sources. Colour: Black Material: Aluminum Alloy Package Contents: 1 x Audio Switcher Selector 1 x Instructions in Chinese and English Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.