Features: The PMMN4015 Remote Speaker Microphone offers high quality, clear communication, making it a essential accessory for MTP850 and MTH series. Builts with a ABS material and featuring a IP54 water resistant rating, this microphone is to withstands harsh environment while maintaining durability and flexibility with its cable. Ideal for professionals working in high noise environment such as construction sites, event management, or security services who rely on reliable communication tools. Perfectly suited for use in demanding conditions, this remote speaker microphone ensures communication even in challenging setting, thanks to its design and superior clarities. Equipped with a 3.5mm port, it allows for easy connection to listen only earpieces, enhancing user convenience and adaptability in various operational scenario. Specifications: Material: ABS Port: 3.5mm Size: About. 7.5x5.8cm/2.95x2.28in Applicable Model: for MTP850 MTH600 MTH650 MTH850 Package Includes: 1pc Mic Speaker note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.