Amazfit ZenBuds are smart, noise-blocking earbuds which help the wearer sleep better. They reduce distracting noises and play sleep-inducing sounds. A smart monitoring function records sleep status and analyses sleep quality. When the wearer falls asleep, the earbuds automatically pause the sound. The silicone earbuds weigh only 1.78 grams each and, with their ergonomic form, are comfortable to wear in the ear canal.