However, at this final 3rd setting, the recovery time goes up to about 1. Since then I have enjoyed using them for many hours at a time. love these, colours are so vibrant. The bass is punchy, the midtones aren’t drowned out by the hightones; all in all, these are a perfect all rounder with multiple choices for comfortable fittings. All steel. I expect we will have caps falling off frequently. at my desired volume settings, the m100 pierced my ears terribly. 5 in my sneakers. Definitely recommended! This product is totally plug and play and will not be recognised by Synapse.