The NanoBoost NB-X is a revolutionary wearable neck Bluetooth speaker that delivers personal stereo sound without earphones. With open-air directional audio, IPX5 waterproof protection, an 8-hour battery, and a beamforming microphone for clear calls, it is perfect for sports, cooking, and outdoor activities. The flexible titanium alloy neckband is comfortable for all-day wear. Stay aware of your surroundings while enjoying your music freely.