Microsoft Teams Certified DECT Wireless Headset Headset: (Dual/Mono version) - Weights: 151g - Bluetooth & DECT Hybrid Wireless Technology - 3 mic beamforming noise cancellation - Talk time(up to): 16h(Dual, DECT Mode) - Bluetooth?5.2 - Busylight on headset DECT Base Connection Port: ? 1x Micro USB 2.0 port (for IP Phone via USB) ? 1x Type-C USB 2.0 port (for PC) ? 1x Mini USB port (for 3rd Party Phone, EHS62/Telephone Cable) ? 1x DC power port  ? 1x Busylight port (for BLT60)