![Spare CS540/A headset Convertible Spare CS540/A headset Convertible](https://ik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/708af3ec/66fb0bc576d1080018009418/30478_b39666ffa3ec409aa49f647c03e5b124.jpg?tr=h-65,cm-pad_resize,q-100,pr-true)
Spare CS540/A headset Convertible
![Spare CS540/A headset Convertible](https://ik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/ae0fc59b/67653c1ee2f4c3105db5d3a5/36ca60440bbf6ad483c252c9ba5600301f09ec41.jpg?tr=w-512,h-512,cm-pad_resize,q-100,pr-true)
![Spare CS540/A headset Convertible](https://ik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/049bf534/676649dd5085e12268367f28/b49df299237a8b27a5a3d4d85d37ee22.jpg?tr=w-512,h-512,cm-pad_resize,q-100,pr-true)
![Spare CS540/A headset Convertible](https://ik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/e4e1cae7/65f95eed67f84a00180ac73d/a6b87dad5506cb799b780d0fab6e68c6.jpg?tr=w-512,h-512,cm-pad_resize,q-100,pr-true)
![Spare CS540/A headset Convertible](https://ik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/e4e1cae7/65f95eed67f84a00180ac73e/63b2d73b9ccfb58de599fb15406c0dd6.jpg?tr=w-512,h-512,cm-pad_resize,q-100,pr-true)
POLY CS540 Top with Headband and Earloops, Ear hook, Black
![Spare CS540/A headset Convertible](https://ik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/ae0fc59b/67653c1ee2f4c3105db5d3a5/36ca60440bbf6ad483c252c9ba5600301f09ec41.jpg?tr=w-96,h-96,cm-pad_resize,q-100,pr-true)
![Spare CS540/A headset Convertible](https://ik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/049bf534/676649dd5085e12268367f28/b49df299237a8b27a5a3d4d85d37ee22.jpg?tr=w-96,h-96,cm-pad_resize,q-100,pr-true)
![Spare CS540/A headset Convertible](https://ik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/e4e1cae7/65f95eed67f84a00180ac73d/a6b87dad5506cb799b780d0fab6e68c6.jpg?tr=w-96,h-96,cm-pad_resize,q-100,pr-true)
![Spare CS540/A headset Convertible](https://ik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/e4e1cae7/65f95eed67f84a00180ac73e/63b2d73b9ccfb58de599fb15406c0dd6.jpg?tr=w-96,h-96,cm-pad_resize,q-100,pr-true)
![Spare CS540/A headset Convertible](https://ik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/ae0fc59b/67653c1ee2f4c3105db5d3a5/36ca60440bbf6ad483c252c9ba5600301f09ec41.jpg?tr=w-1200,h-1200,cm-pad_resize,q-100,pr-true)
![Spare CS540/A headset Convertible](https://ik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/049bf534/676649dd5085e12268367f28/b49df299237a8b27a5a3d4d85d37ee22.jpg?tr=w-1200,h-1200,cm-pad_resize,q-100,pr-true)
![Spare CS540/A headset Convertible](https://ik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/e4e1cae7/65f95eed67f84a00180ac73d/a6b87dad5506cb799b780d0fab6e68c6.jpg?tr=w-1200,h-1200,cm-pad_resize,q-100,pr-true)
![Spare CS540/A headset Convertible](https://ik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/e4e1cae7/65f95eed67f84a00180ac73e/63b2d73b9ccfb58de599fb15406c0dd6.jpg?tr=w-1200,h-1200,cm-pad_resize,q-100,pr-true)
Brand
HP Inc
SKU
10424473
EAN
197497579956
MPN
85T27AA#ABB
POLY CS540 Top with Headband and Earloops, Ear hook, Black
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Hands-free productivity
The CS540 convertible DECT headset provides professional performance so you can get more done - even on the move. The noise-canceling mic reduces background noise interruptions, ensuring great audio quality and easing listener fatigue.
The CS540 convertible DECT headset provides professional performance so you can get more done - even on the move. The noise-canceling mic reduces background noise interruptions, ensuring great audio quality and easing listener fatigue.
![Spare CS540/A headset Convertible Spare CS540/A headset Convertible](https://ik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/ae0fc59b/67653c1ee2f4c3105db5d3a5/36ca60440bbf6ad483c252c9ba5600301f09ec41.jpg?tr=w-96,h-96,cm-pad_resize,q-100,pr-true)
Technical Reference
Product Summary
Brand
HP Inc
SKU
10424473
Manu Part #
85T27AA#ABB
EAN
197497579956
Warranty Information
Poly standard one-year limited warranty
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