Hi!, Sorry but my english is very basic.
The most common situation when I use the SMH5-FM is that when I start to ride, I forgot to power it on, and when I go to power it, it take 3 seconds on press of the two buttons. The problem is that it is a long time if I driving, because in this time I use one hand to ride. I know that is beter to power it on before ride but the most of times I forgot to power it on and this is a reality. The ideal thing will be a fast start like the power off.
I will wait for your comments. Thanks!