The Dash Earbuds are the world’s first wireless smart in-ear headphones. Pair them via Bluetooth with a smartphone or simply use the embedded 4GB/1000 song music player. It also works as a fitness tracker, tracking your pace, steps, and distance, and as a monitor measuring your heart rate, oxygen saturation and energy spent. It also doubles as a Bluetooth headset with clear voice quality delivered through the embedded ear bone microphone. Enable or disable noise cancellation with a swipe on its capacitive touch sensor. It’s also water-resistant up to 3.3 feet. Each 1-hour earphone charge (via USB) lasts for approximately 4 hours of play time and 250 hours of standby time.