So I looked to see if my phone supported a headset at all, and if that headset had a mic. If youre looking for a roof mount cargo bag, stop looking, get this one. Seems sturdy and doesn?t dig into the dirt w the flared bottom. I didnt get these for workouts but actually to use with my computer mainly for video conferencing. I purchased several different models about 1 year ago. It seems durable enough for the price. Grip on towbar is adjustable, needs a good push on the handle to lock it on (instructions advise 43kg pressure but how youre supposed to measure that Ive no idea). The plastic rings that hold the spice bottles are pretty flexible too, so Ive been able to use various spice jars. Quality is quality and I want these to last awhile. Should have paid more attention to the reviews.