With the Premium Dual-Mode Antenna Kit, humanitarian or aid workers responding to an emergency situation on land can make high quality voice calls and use chat applications over the Iridium Certus® 100 midband service, featuring speeds of up to 22 Kbps transmit / 88 Kbps receive. Recreational boaters and their passengers can stay updated on changing conditions or connect with colleagues and loved ones via phone, chat apps, email, or social media -- all while below decks.