Core 2 is the ultimate practice companion for all musicians and makes your music practice (almost) addictive. Access five professional music tools - a vibrating metronome, practice tracker, chromatic tuner, decibel meter, and smartwatch - all in one revolutionary device. All Core versions are made from different materials and include different accessories, but offer the same functionality. It's splash resistant (IP65). This means it can withstand light rain or water splashes, for example while washing your hands. However, it can not withstand heavy rain, showers or water immersion. You can customize the colors of the LED lights or turn them off completely! They use a 7G ERM haptic motor powered by a special haptic driver. This creates vibrations unlike in other wearables. More distinct and precise & 700% more powerful than most devices. This powerful hardware is not just a gimmick that sounds cool, but a requirement for a vibrating metronome to work. Battery life is 4+ days in watch mode, or 3+ hours metronome playback. Core Steel 2 comes with bonus black Italian leather strap & bonus carrying pouch compared to Core 2.