Rugged, water resistant and ready to deliver bold sound wherever you go. Bold sound. Bose® technology packs big sound into a small, water-resistant speaker (IPX4). Portable design. Soft-touch silicone exterior, small size and wireless design make it easy to pick up and go. Durable build. Rugged, water-resistant design lets you enjoy the music you love in more places. Speakerphone. Built-in microphone for taking calls and accessing your phone’s Siri or your Google Assistant™ from the speaker. Rechargeable lithium-ion battery. Lets you enjoy up to eight hours of play time.