This product is either discontinued or we cannot get that from suppliers.
Logitech H820e Wireless Headset Dual 981-000517, Headset - DECT - wireless, Use Computer, Sound Output Mode Stereo, Audio Frequency Response 150 - 7000 Hz - Sensitivity 103 dB, Microphone Boom, Controls Mute, volume, answer/end.
The Logitech Wireless Headset H820e, combines enterprisequality wireless audio with superior design elements, making it Logitech’s best wireless headset. Interruptions are minimized with a distinct in-call LED light, and muting is intuitive.