After an hour usage over bluetooth, battery still shows 100% with phone bluetooth settings. I will say that I use my own wall anchors that are metal and they tend to grip better in the sheetrock. Took my husband 10 seconds to install it. I like the look of these shoes, and they seem to be made with quality material. The material and construction was solid as described. The sound is rich and full, very good reproduction of my voice, and I confirmed in practice that it will pick up F1. Very impressed with my new VIETA earphones. The hassle of getting the headphones to work is unacceptable for a set this expensive. the soles and fur seem a lot cheaper than my other ones that I bought from a store. No matter how hard I shake the container, it would not mix.