New, Unopened Product Description: 【Dynamic Audio and Active Noise Cancellation (ANC)】 Premium speaker drivers deliver clear, balanced sound. The sealed in-ear design and ANC reduce ambient noise. 【Compact and Comfortable】 Small, lightweight, and sweat-resistant (IPX4 rating). Four sizes of ear tips and two sizes of wing tips ensure a perfect fit for your ears. 【Hands-Free Entertainment】 Just ask Alexa to stream music, play podcasts, read audiobooks, and more. 【Long Battery Life】 Up to 5 hours of music playback on a single charge, and up to 15 hours with the charging case. A quick 15-minute charge provides up to 2 hours of music playback. 【Without Taking Out Your Phone】 Just ask Alexa to make calls, set reminders, add items to your shopping list, or even turn on your air conditioner before you get home. 【Customization】 Easily change tap controls and equalizer settings in the Alexa app. Adjust the level of passthrough audio and power-saving settings. 【Other Voice Assistants】 Compatible with iOS and Android. Supports launching Siri and Google Assistant. 【Privacy-Conscious Design】 Amazon does not sell your personal information to others for profit. Echo Buds are designed with multiple layers of privacy protection, including a microphone mute button in the Alexa app. Experience clear, balanced sound from premium speaker drivers. Enjoy the comfortable reproduction of acoustic instruments, pure vocals of a cappella, distorted electric sounds, electronic sounds, and beat-driven bass sounds. You can also adjust the balance of high, mid, and low frequencies with the 3-band equalizer. Active Noise Cancellation Active noise cancellation uses built-in microphones to capture ambient noise and then plays the inverse sound to cancel out the surrounding noise as much as possible. Echo Buds are equipped with this active noise cancellation, combined with a highly sound-isolating design, to achieve a high level of immersion.