Globalstar GHB-1700 Headset theBoom

Product Description Globalstar offers theBoom "O" industrial noise-canceling headset for use with the GSP-1700. With the crystal clear satellite phone quality of Globalstar, theBoom O's patented noise-canceling technology delivers clear speech even in the noisy and harsh environments where satellite phones are used most. With theBoom "O", you will be heard loud and clear even at a whisper. ROHS and WEEE compliant Certified to FCC, E-mark, C-tick and CE emissions, immunity and safety regulations Use only Globalstar-approved accessories with Globalstar phones. Use of any other accessories will invalidate the phone warranty and may be dangerous. All specifications subject to change without notice.  GHB-1700 theBoom "O" Specifications: Sensitivity -35 dBVrms Impedance 2,200 Ohms Frequency 50-20,000 Hz S/N ratio >70 dB