I BOUGHT and RETURNED: G703, G902, G PRO, G502 LS, Dark Core, Razer mamba & viper. Very subtle thumb curve and a very, very subtle groove for the index finger. Funny thing, no matter what I do to adjust the fit it wont read the heart rate. En cuanto al sistema, Android 10 y MIUI 12. This shoe rack is extremely sturdy and good looking. This works best when it is placed on a small tripod at face level for all of the participants. - Waterproof: Ive tested the waterproofing of the headphones and can testify that it does work. Was not mentioned that these were a narrow width Excelente dispositivo, no podría esperar menos de Sony , duración de la batería más que notable, vengo de unos Samsung galaxy buds 1g, y la duración de batería es brutal. THIS shoe "ooffers" ;-) wonderful relief to feet and back!