Although this one is only a two way charger it charges my iPhone XS Max & my Apple Watch Series 4 quickly and keeps them at 100%. Cost is too high, especially after shipping from third party Amazon seller. To have played such a role in animation, on top of everything else, was just incredible. Other pros: very adjustable, can be worn either side; stays in place; has a reasonably long cable. I used that when I drilled the holes for the plastic expansion bolts which made this a 5 minute job to install. I have a couple of "competitor" tension band products from prior purchases (SPIRIT brand) that have a bit more length and so offer a bigger range of motion for certain exercises. Apart from the useless paddle holders, these function beautifully and make it very easy to load my two 10-foot yaks on my Subaru Forester without using a step stool. Thing sounds great. We?ve used it in the kitchen while cooking, we take it outside in the back yard while we tend our garden. So instead I ordered the cheaper version without the microphone.