Yealink YHS33-USB is a professional headset with an over-the-head style that eliminates background noise and helps you get into your zone and focus. Coupled with wideband audio technology and HD voice, the YHS33-USB delivers richer and clearer conversations, as well as reduces listening difficulties. The simple plug-and-play setup permits you to use the USB port with USB-supported Yealink IP phones, plug it into the USB port or 3.5mm jack on your laptop, or use the 3.5mm jack directly with your smart device. Get easy access at your fingertips via the intuitive control unit to frequently-used functions, such as accepting incoming calls, adjusting volume, and muting the microphone. Yealink YHS33-USB stands out in the market with a combination of exceptional comfort, durable lifecycle, premium quality, and brilliant sound. When used with uncertified communication platforms, it functions as an audio-only device at a minimum. This is an exclusive Global Teck offer that comes with the Yealink T29G SIP Phone, Yealink BT40 USB Bluetooth Headset adapter, and Power Supply. It has all you need to get started and allows you to use a Bluetooth headset with the T29G phone. Additionally, Yealink has tested several models for compatibility. See tested models. If your Bluetooth headset is not on the list, feel free to contact us, as this list is updated regularly to include new headsets. Bundle includes: Yealink USB and 3.5mm Jack Mono Headset-YHS33-USB 2-pack Windscreen Yealink Start Guide