The F2 wireless earbuds are equipped with Bluetooth 5.0, weigh only 4.5 grams each and are watertight. They connect automatically to a smartphone and, thanks to their patented antenna design, provide a stable connection for music enjoyment without skips or drops. The nano coating and special structure of the earphones render them watertight according to the IPX7 standard, so that they may be easily worn during exercise.