Description Hybrid working? No problem. The Poly DA85 USB Adapter keeps call center employees sounding clear at home or in the office with easy USB-A or USB-C connections. Full Microsoft Teams integration gives you access to everything Teams has to offer. Audio is adjusted to each specific headset, offering pro-grade call quality. The controls are simple to use, including a unique single hold button for audio and video. Durable enough for 50,000 disconnects, and gentle enough to preserve your hearing, the DA85 adapter upgrade any Poly QD headset to a new standard of excellence. Flexible and future-proof, only from Poly.