I have an old Plantronics Discovery 665 bluetooth headset, bluetooth version 2.0. Will this work with my HTC Thunderbolt phone?
The TBolt uses Bluetooth v2.1 and should be backwards compatible with v2.0 devices. You could go to HTC's website and try to get more info on this, but I would try and pair it and see what happens.
Thanks. But the battery won't charge up anymore. That's 80 bucks down the drain. It's about 4 years old.
