Part numbers GA-SV01 and GA-SV01 2P: 2.5mm plug style. Compatible with all Cobra FRS radios with standard non-threaded 2.5mm headphone socket including PX650, ACXT Series, RX Series, and TrailBlazer Series. Part number 0010097-1: M1 plug style. Compatible with Cobra Performa 400 & 450 radios. Single-line PTT High quality acoustic tube Silicon ear tip PU cable compliance with ROHS contain high intensity Kevlar is very firm and endurable.Waterproof Level: IP54 SpeakerOD: Φ16mmResistance: 90Ohm±15% at 1000HzSound Pressure Level: 90dB±3dB at 1000HzRated Power: 100mWMax Power: 200mW MicrophoneType: Electret microphoneSensitivity: -40dB±3dB at 1000Hz(0dB=1V/Pa)Resistance: 2.2KOhm Perfect for security, high-end hospitality, and upscale dining environments where discretion is important. This professional-grade surveillance earpiece combines elegance with functionality. Features: o IP54 rated for durability o Designed for comfortable 8-hour continuous wear o Clear, intelligible audio o PTT (Push-to-Talk) in-line button o M1 plug style for easy compatibility, works with both Cobra Performa and select non-Cobra devices o Stays secure while user is moving and working o Professional appearance for discreet wear o VOX Included with switch on unit o Features 2 clips for customizable wear adjustment Key Business Benefits: Ultra-discreet design that's inconspicuous to guests and clients Professional appearance that complements formal business attire All-day comfort for long shifts in customer-facing positions Clear audio quality essential for busy, noise-sensitive environments Ideal Business Applications: Fine Dining: Allows managers and hosts to coordinate seamlessly without visible communication equipment, maintaining the atmosphere guests expect Luxury Hotels: Enables front desk staff, concierge, and security to communicate discreetly and maintain a polished appearance High-End Event Venues: Perfect for event coordinators and staff who need constant communication while maintaining a professional, understated presence VIP Security Services: Provides the discreet communication necessary for professional security details WARNING: This product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov