Koss SB45 USB Headset, Black/Silver

The Koss SB45 is a wired, over-ear USB headset designed for PC communication tasks such as VoIP calls and speech recognition. The closed-back earcups provide passive noise isolation, while the stereo drivers deliver a frequency response of 18 Hz to 20,000 Hz. With an impedance of 100 Ω and sensitivity rated at 103 dB, the headset is specified for clear audio reproduction. It connects to a computer using an integrated 2.4-meter USB-A cable, ensuring a consistent, direct connection without the need for batteries.

For voice input, the headset is equipped with a noise-reducing boom microphone that utilizes Clear Voice Technology (CVT) to minimize ambient sounds. This design aims to improve vocal clarity during conversations and interactions with voice-activated software. The headband-style headset features a foldable construction, which allows it to be compacted for storage or travel inside the included carrying case. Its total weight is 369 grams, consistent with a full-size, over-ear peripheral.

• Over-ear headset with a closed-back design
• Connects via an integrated 2.4 m USB-A cable
• Features a noise-reducing boom microphone
• Includes a physical microphone mute function
• Foldable construction for storage and transport
• Finished in a black and silver color scheme
• Comes with a carrying case