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EPOS | Sennheiser BTD 800 USB-C ML Bluetooth dongle (1000206)
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Manual Sennheiser BTD 800 USB (page 10 of 57) (English)
Sennheiser Premium Bluetooth UC Headset for Mobile and Office applications on Lync. Includes BTD 800 dongle for joint pairing to mobile plus Lync 25 m | Buy Headset & Ear Microphones - 5714708004615