The JPL-Explore-B is a totally unique Patented DECT Headset concept which future proofs desk phone connectivity for further development in Bluetooth and USB technology. The binaural headset has modular draw facility which means users can upgrade the standard model to USB and Bluetooth. Features include put and stay ratchet microphone boom arm, Surround Shield noise cancelling, wideband enabled speakers, Sound Shield hearing protection, max 100m (300ft) coverage and 6-7 hours wideband audio. JPL Explore-B Binaural DECT Wireless Headset User changeable headband supports binaural and monaural configurations Ratchet microphone boom arm with Surround Shield noise cancelling Wideband enabled speakers with Sound Shield hearing protection Wireless Range: 100m (300ft) One full charge provides 6 hours talk time Sound Defender acoustic shock protection