Plug and Play connects in seconds to laptop smartphone and tablet via USB or Bluetooth. HD Voice/Wideband Audio provides superior sound for the best voice collaboration – making sure that everyone is heard with crystal-clear clarity. Pair two Jabra Speak 710s in seconds and easily cover a meeting room of 12 people. All Jabra USB headsets and speakerphones work with all the most popular online voice call services. USB Charge out port – Recharge your smartphone or tablet during your call. ZoomTalk Microphones – Intelligent directional microphones that focus on human voice and not noise.