The phone charger and watch charger joins magnetically. The plugs do not charge both ports at the same time. After finding the knob for $8 I thought it was smooth sailing until there was a $15 shipping cost. There were two pegs detached from the rack, one missing a screw altogether. The red bad is loose and does scrunch up a bit when tying, which is my only criticism. I was looking for something to hold our shot glasses. The color of the fabric at the toe and the elastic at the back is consistent. Perfect Price, Perfect Shipping, Perfect Packaging, Perfect Fit, Perfect Comfort! They?re earbuds. Higher efficiency isn?t always a good thing, ?lower? efficiency or/and higher ohm resistance will result in a tighter faster response - but require more output sound-card/amp power.