Waterproof Bluetooth speaker that produces crisp, balanced sound and unmatched bass for a Bluetooth speaker its size thanks to the proprietary Bose technology including custom-mounted transducer and passive radiators. It plays loud and clear even outdoors, and is completely waterproof (Ipx7 rating), with soft, rugged exterior which resists dents, cracks and scratches and tear-resistant silicone strap for great portability. The speaker provides wireless Bluetooth pairing with voice prompts with up to 6 hours of play time from a rechargeable lithium-ion battery. It is also equipped with built-in speakerphone for taking calls out loud and voice access to the Siri, Google Assistant or Amazon Echo Dot. Free Bose Connect app allows to pair more than one compatible Bose Bluetooth speaker and use them in Party or Stereo mode, and easily manage the connection and other functions. The speaker is easily charged via Micro-B USB port and comes supplied with USB cable. Black colour design with black strap.