STATE-OF-ART DESIGN: SoundLink Flex outdoor speaker is packed with exclusive technologies and a custom-engineered transducer for deep, clear, and immersive audio at home or on the goCLEAREST POSSIBLE SOUND: Proprietary Position Qtechnology automatically detects the position of your portable Bluetooth speaker for optimal sound quality in any orientation or environmentWATERPROOF WIRELESS SPEAKER FOR TRAVEL: SoundLink Flex is rigorously tested to meet IP67 waterproof speaker standards. Crafted and sealed with waterproof materials, it even floats – ideal for outdoor adventuresPORTABLE BLUETOOTH SPEAKER: Built to resist water, dust, and debris, in a design that withstands drops and rust, this compact speaker goes wherever you do. It’s also easy to hold and store, and resistant to corrosion and UV lightRECHARGEABLE BATTERY: Portable speaker charges through USB-C cable (included). Lithium-ion battery offers up to 12 hours of life per chargeBUILT-IN MICROPHONE: You can make and receive calls through the portable Bluetooth speaker. Just one button accesses your phone's Siri or Google Assistant voice inputBLUETOOTH WIRELESS SPEAKER: SoundLink Flex pairs with Bluetooth-enabled devices like phones and additional Bose speakers within a range of 30 feetBOSE CONNECT APP: App automatically updates the portable Bluetooth speaker with the latest software, allows you to customize settings, unlock product features, and moreBOSE SIMPLESYNC TECHNOLOGY: SimpleSync pairs your Bose SoundLink Flex Bluetooth Speaker to compatible Bose products for sound that follows you from room to room. Away from your phone. Press and hold the Bluetooth button on each device to sync their sound. Already got a group going. Link by pressing the Action button to connect at a moment’s notice