will it hurt the battery to leave blue tooth devices plugged in

[theultimatekcchiefsfan]

I have 3 different pairs of blue tooth headphones i use for different things. one i wear outside when mowing or taking dogs for walk. one i take to work that can fold and go in my pocket. and a nice one i use for gaming or listening to music on my note 3.

I want to know if it is ok to leave these devices plugged into my new http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1wall charger when not in use. maybe be for a couple of weeks at a time sometimes. will this hurt the batteries or not. I just purchased this BOLSE charger for my devices. I will not be plugging my note 3 in here by the way. I charge it upstairs.

Any advice or experiences would be appreciated. Thanks