No more annoying audio clicks. Free your ears so you can focus on the music. Experience vibrations 7x stronger than the average smartphone. Tap twice to play or pause the metronome. Make fine tempo adjustments by twisting the outer wheel. Tap your fingers and the tempo will follow. It's not magic. But it feels like it. And with the companion mobile app for iOS and Android, easily set time signature, subdivision and accents. With the included bands, wear it on wrist, arm or ankle. With the separately available Pulse body strap, wear it on chest, shoulder or thigh. With our app you can save presets of your rhyhms and build setlists. Add sounds. Turn off or customize the LED light colors. And that's just the beginning! Size: 50mm / 1.9 in Weight: 47g / 1.7 oz Case material: Polycarbonate Band material: Silicone Band size: Short band fits your wrist (165mm to 235mm)., long band fits your arm & ankle (250mm to 395mm) Water resistance: Sweat resistant (IP62), withstands intense practice sessions (but no showering or swimming!) Battery: 6+ hours of metronome playback (300 mAh lithium-ion battery) Connectivity: Bluetooth 4.0 LEDs: 8 RGB LEDs in outer ring