Q: Can I use any bluetooth headset with my 510S system?

Plantronics 510S

A: Any Plantronics Bluetooth headset can be paired to the 510S base unit, however, the base unit is designed specifically to hold the 510 headset and charge it.  None of the other Plantronics Bluetooth headsets will fit into the 510 holder with the connectors properly aligned to charge the unit.  Therefore you will need to charge your headset by some other means, such as an AC adaptor or a USB adaptor, and then you will need to pair up your headset with the base unit prior to using it.