The T'nB Single 2 Headset black Bluetooth headphones are single-ear monaural headphones designed for professional communications and safe driving. Developed with a noise-canceling, adjustable microphone boom and soft black ear cushions, they allow you to keep one ear free from your surroundings while answering calls. The understated black color is ideal for offices. Indispensable for call centers, drivers, and professionals working remotely.