1byone's Bluetooth 4.1 Wireless In-Ear Headphones is well made. The construction is sturdy. The headset is comparable to my more expensive major brand headset. I like the piece that allows the adjustment of the excess cord. The sound is decent. Good for the price. The extra size ear pieces allow one to customizer the fit of the buds. As far as being a set of buds for the gym they are great! #1byoneWirelessHeadphones