This pre-owned or refurbished product has been professionally inspected and tested to work and look like new. How a product becomes part of Amazon Renewed, your destination for pre-owned, refurbished products: A customer buys a new product and returns it or trades it in for a newer or different model. That product is inspected and tested to work and look like new by Amazon-qualified suppliers. Then, the product is sold as an Amazon Renewed product on Amazon. If not satisfied with the purchase, renewed products are eligible for replacement or refund under the Amazon Renewed Guarantee.Ultimate Sound: Our most powerful speaker with 360° intensely rich sound, stunning clarity, and heart-pounding bass. With up to 12 hours of battery, it brings your music to life wherever you take itWith Amazon Alexa hands-free voice control: Just ask Alexa to blast tunes from Spotify (as of May 2018), Amazon Music, iHeart Radio or TuneIn, change tracks, discover new restaurants - or try any of Alexa's skillsWi-Fi and Bluetooth enabled: Use the Alexa Voice Service at home or on the go whenever connected to Wi-Fi or a mobile hotspot or stream music via Bluetooth from your phoneWaterproof and virtually indestructible: Never worry about going easy on it, your music will always be on point. The speaker is IP67 rated and can be immersed in water up to 1 m for 30 minutesSmarter over time: Update your speaker with the Ultimate Ears app as new features become availableThese are FCC regulated products: FCC ID JNZS00157