I've been using a SM58 with on/off switch for 9 years. I'm in the market for a better quality Shure mic for singing, but it must have an on/off switch. What can you recommend?
Sorry, in the Shure line, the SM58 that you own is the best mic with a switch. More expensive mics do not have switches.
Why no on/off switch?
The connector manufacturer, Neutrik, offers a female XLR connector with an on-off switch. This connector/switch may be installed on the end of a mic cable and can be used with many microphone models.