The Flipper The Flipper from Bifrost Gear was designed as a simple solution to wiring format problems frequently encountered when using NATO-US wired headsets with NATO-EU wired PTT's. When it comes to tactical headsets and Push-to-Talks, there are multiple industry standard wiring types. These wiring types are often mislabeled and online listings can be misleading. One version is standard in the USA, called NATO-US (or “Military” wiring). The other version is standard in Europe, called NATO-EU (or “Airsoft” wiring). The Flipper from Bifrost Gear is a compact converter cable that finally lets NATO-US and NATO-EU devices seamlessly communicate. Converts NATO-US (military) wiring format to NATO-EU (airsoft) wiring format and back Lets Comtac, Sordin, OPS-Core AMP, and Earmor headsets communicate with airsoft PTT's or lets Comtac XP and XPi, Z-TAC, and airsoft wired headsets communicate with NATO-US wired PTT's - If you're experiencing low/no sound in your earphones or incoming transmissions being heard through the boom microphone, this converter cable will fix your headset problems. - Installs inline between your headset and PTT - NEXUS TP-120 connectors - IP68 waterproof - 9" long