They are a bit bigger then the originals which makes them more comfortable in my opinion. Connected to my apple watch the signal doesnt drop at all; connected to my phone, the range is maybe a little less than indicated but still quite good. Not super good quality but for $20, can?t complain. I will most likely order another pair. The 40mm sub drivers can make serious bass. I was just about to throw the whole mess into the box and sent it back, but then I thought about what a pain it was to return things like this online. Overall, versatile and lightweight and easy to use. it is also durable and will ladt a very long time Must have come from China! Save yourself the heartache, and just budget in the $120-150 now.