Built in Speakers: The wireless bluetooth speaker has a built in 2 2.5W speaker system to create a truly unique and pure stereo sound. Lightweight Design: The neckband Bluetooth speaker features a lightweight neckband design for all day listening comfort and a perfect fit. Hands Free: Portable speaker frees your hands and ears, so you can stay informed about your surroundings while enjoying your music. Bluetooth 5.0: The wireless neckband speakers' advanced Bluetooth 5.0 chip ensures stable transmission up to a distance of 33 feet (10 meters). Noise Cancelling Microphone: The wireless wearable speaker has a built in noise cancelling microphone for clearer calls, lightweight, flexible, and durable.