Ameriking AK-451 406MHz ELT w/Whip & Portable Antenna 406 / 121.5 / 243 MHz ELT no GPS PositionWhip & Portable Antennas All accessories include Pre-fabricated Wiring Harness Assembly, Remote Control Panel, Audible Warn Buzzer , Coaxial Cable Assembly, and Universal Mounting Tray Portable soft case The AK-451 has been certified to the following:FAA TSO-C126, TSO-C91a, ETSO-2C126 per European Aviation Safety Agency (EASA) It transmits aircraft immediately and accurately, on triple (406 Satellite /243 Military /121.5 Civilian) MHz frequencies