This is a dual-ear USB wired headset equipped with a dual-microphone noise reduction system that suppresses ambient noise and transmits clear audio. It features two microphones: one to capture ambient noise and another to capture the user's voice. The dual-microphone noise reduction system processes the audio with DSP, cutting out unwanted noise and transmitting only the user's voice clearly to the other party. With a maximum noise reduction performance of -35dB, it provides outstanding noise cancellation, making it sound like you are talking in a quiet library even when making a call in a subway car (80dB). It's an over-the-head type for a stable fit and comfortable use even for long periods. It employs a 40mm dynamic driver, achieving balanced and powerful high-quality sound. Purchased in August 2025. Used only a few times.