This product is either discontinued or we cannot get that from suppliers.
Poly Plantronics Blackwire 87506-01, v2.1 + EDR, A2DP, Wireless approx. 33 feet, Talk time up to 10 hours (6 with A2DP), Speaker stereo/dual, wideband, hifi, 20 Hz to 20 kHz, volume +/-, call answer/end.
The versatile UC headset that offers high-quality PC audio and seamless Bluetooth connectivity to mobile phones and tablets. Enjoy unmatched audio quality, industry-first smart sensor technology that automatically answers.