Waterproof Speaker Microphone with Emergency Switch The Icom HM222H is a rugged speaker microphone that provides clear and reliable communication in challenging environments. Designed for professionals who demand durability and functionality, the HM222H features an IP68 waterproof rating, a 3.5mm accessory jack, and an emergency switch for enhanced safety. Key Features IP68 waterproof and dustproof rating 3.5mm accessory jack for connecting earpieces or headsets Emergency switch for quick access to critical functions 14-pin connector for secure attachment to compatible Icom radios Loud and clear audio for effective communication in noisy environments Durable construction to withstand tough conditions Compatibility Radio Series Specific Models IC-SAT100 IC-SAT100 IC-F7040 IC-F7040T/S IC-F7010/20 IC-F7010, IC-F7020 IC-F3400D/4400D IC-F3400D, IC-F4400D IC-F52D/62D IC-F52D, IC-F62D IP730D/740D IP730D, IP740D Product Warranty 1-year manufacturer's warranty