Hands-free Alexa. Support for Siri and Google Assistant. Bose Active Noise Reduction Technology. There's a lot to like about Amazon's first true wireless earphones. Dubbed the Echo Buds, they have a sweat-resistant design that's ideal for workouts, 5 hours of battery life with up to 20 with the charging case, an in-ear design with three sizes of included ear tips for a comfortable seat, and an audio passthrough feature that lets you hear the world around you.