YAMAHA's TM-40BK tuner microphone, with a 3.5mm plug, is a convenient clip-on type. - Model Name: TM-40BK - Brand: YAMAHA - Plug Type: 3.5mm mini-plug - Clip Size: Approximately 30mm - Application: Tuner microphone Thank you for viewing. I purchased this by mistake, getting the wrong plug size. I opened the box, but it is unused. The box is slightly torn from when I opened it.