HP Voyager 5200 Large Eartips 85Q21AA are replacement eartips for the Voyager 5200 headset. This large-size option is intended for replacing the headset’s eartip while retaining the same headset.
The listing identifies this part as Poly 203710-03, also shown under HP part number 85Q21AA. The eartips are described as large and supplied with foam covers, making this a focused spare part for the Voyager 5200 rather than a complete headset.