Hear The Difference - Airport

(Click Play to hear the Milicom In-Ear Mic compared to an open mic)



Hear The Difference – Music Concert

(Click Play to hear the Milicom In-Ear Mic compared to an open mic)



SL7550/SL300 2-Way Radio Headset

Remote Finger PTT option available.
Milicom Y PTT Headsets are the perfect critical communication solution for all users in challenging, loud environments that deliver real solutions in noisy conditions.

Crystal Clear Critical Communication at All Times


  • Milicom’s unique patented In-Ear mic and voice capture system SPEAR™, delivers superior voice quality and whisper capability in all weather and noise conditions, including variant noise level situations (i.e. wind and manufacturing floor)
  • Superior Noise Isolation ensures clear sound and protects hearing

Versatile Platform for Broad 2-Way Radio Support

  • 2-Way Radio compatibility with Industrial, Land Mobile, and Public Safety Radios
  • Currently compatible with TRBO 2-Way Radios
  • Custom radio integration available to support customer requirements

Ergonomics and Comfort for Full Shift Wearability

  • Y Design accommodates all uniform configurations
  • Foam and Silicon Ear Tip styles for best performance in all settings
  • Includes variety of ear tip sizes to ensure best fit

Completely Customizable Configurations

  • Dual or single ear headset configuration
  • One, two or three locations of PTT button access
  • Black hardware (custom colors available with minimum order size)

Rugged Construction

  • Durable, Kevlar-reinforced cable provides 20 pounds of pull strength
  • Industrial grade design for all commercial uses
  • Patented In-Ear Microphone captures speech patterns in the ear canal to deliver clear sound
  • Patented SPEAR Speech Capture System
  • Whisper Capability, even in noise
  • Milicom’s Next Generation PTT Headsets provide clear speech and innovative features for demanding 2-Way Radio users.
Superior Voice Quality Milicom Proprietary Acoustic and Analog Processing
Headset Earpiece Support Dual or Single Ear, includes 3 sizes of foam tips
Passive NRR 31 – 33 dB, ANSI S12.6-2008, Method A
 PTT Functions Milicom designed Housing with PTT electronics and battery
PTT Configurations
  • Milicom exclusive in-line phone-like PTT Button
  • Remote Finger PTT button configuration option
  • Milicom Housing PTT button configuration option
Control Box
  • Ruggedized for industrial, commercial or field use
  • Enhancement of voice quality
  • Push-to-Talk button support (multiple configurations; see above)
  • Belt clip
2-Way Radio Compatibility Compatible with Motorola SL7550/SL300 2-Way Radios
OEM Customizations Custom 2-Way Radio Integration services available
Battery type User replaceable coin cell (Type: CR 1632)
Battery Life, Power Draw 6 months of 1 hour PTT talk time / day (varies by usage/environment)
Operating Temperature -20°C to +60°C (Electronics & Headset)
Storage Temperature -33° C to +71° C
Environmental Mechanically ruggedized and designed to meet IP-67
Speaker Impedance:
  • DC Resistance
  • Impedance @ 500Hz
  • Impedance @ 1 kHz


  • 25Ω  ± 10%
  • 36.5Ω  ± 15%
  • 55.5Ω  ± 15%

IP ProtectionMultiple US and foreign patentsCountry of ManufactureUSA



hospitalityicon Hospitality
publicsafetyicon First Responders, Public Safety
Security, Agency
manufacturingicon Manufacturing, Mining, Production
agencyicon Construction
utilitiesicon Utilities, Energy, Nuclear, Oil & Gas