Brand New In Unopened Box: Immersive sound – Premium speaker drivers deliver crisp, dynamic audio. Bose Active Noise Reduction Technology and sealed in-ear design limits background noise. Hands-free with Alexa – Echo Buds work with the Alexa app to stream music, play Audible audiobooks, make calls, or get directions—just ask. Access other assistants – Supports access to Siri or Google Assistant from a supported device—just press and hold your earbud. Long-lasting battery – Get up to 5 hrs music playback per charge, up to 2 hrs with a 15-min quick charge, and up to 20 hrs with the charging case. Customizable fit for better sound – 3 sizes of ear tips help form a comfortable in-ear seal for immersive listening. Exercise ready – Sweat-resistant with a secure fit that’s made to move with you. Alexa is always getting smarter and adding new skills – Request a rideshare, get a guided workout, or order dinner, all hands-free. Designed to protect your privacy - Amazon is not in the business of selling your personal information to others. Echo Buds are built with multiple layers of privacy controls, including the ability to mute the mics with the Alexa app.