black fitness watch (activity tracker) and true wireless stereo (tws) . closeup, selective focus

gadget font electronics light wheel bumper brand smart band device watch technology fitness sport monitor tracker lifestyle health digital bracelet wireless wristband exercise heart hand accessory healthy interface cardio activity modern training wearable isolated pulse time workout screen electronic clock smartwatch design app mobile black run concept touch stereo audio sound music earphone portable listen headset equipment earbud true ear earphones object connection smartphone earbuds headphones small communication background box closeup cordless internet accessories earpiece pleasure