Logitech USB Headset Mono H650e - Headset - on-ear - wired. Salespeople, customer service representatives, and other businesspeople who are on calls all day will appreciate the comfort and design of the Logitech H650e. Sophisticated in both appearance and technology, the H650e delivers clear audio with features such as acoustic echo cancellation and a noise-cancelling boom mic. It's all intended to make your calls as productive and comfortable as possible.