Two-way 3.5mm audio switch - no external power required, plug and play. The 6(1)-IN-1(6)-OUT 3.5mm Auxiliary Audio Switcher is designed for customers with multiple audio sources and outputs. (Note: Only one input can be played at a time.) 6(1)-IN-1(6)-OUT - 6 to 1: Connect 6 audio sources (such as CD/PC/Phone/MP3) to port 1/6, connect 1 audio output (such as speaker/ headphones) to the IN /OUT port. 1 to 6: Connect 1 audio source to the IN/OUT port and 6 audio outputs to the 1/6 port. All connections are on the same side, an easy solution to clogged lines. Comes with a high-quality 3.5mm audio cable for easy use. Support volume control to help get clear sound quality without delay. The input is compatible with PC, mobile phone, laptop, , DV player and MP3. Outputs: Speakers, Headphones, Headphone Amplifiers and more. (only for three-segment earphones, not for four-segment earphones) Colour:Gray Material:ABS Package Contents: 1 * Switcher 1 * Audio Cable 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.