Key Features Dual ENC Mics for Crystal-ClearVoice transmission Widebandspeakers forHiFiaudio experience Optimizedfor Microsoft Teams & UC Platforms Multipoint Bluetooth connection, connects to two devices BluetoothandUSBdongle (Comes only with 720BT+) Upto 45 hours oftalk timeand40 hours ofplay time Ergonomicdesign, Mutebutton on Micboom& Protein Leather Cushions! Poweredby QualcommChipset Solution