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H-250/U military handset

Item No.: PTE-M004
The H-250/U is a microphone-receiver handset used for tactical field communications requirements. The rugged construction is designed and manufactured to meet U.S military specifications MIL-PRF-49078
Description Features Specification Related models

Power-Time Push To Talk H-250/U Handset

NSN:5965-01-247-4723 5965-00-043-3463

PTE-M004 military H-250/U Handset is designed and built according to military standard MIL-STD-810.
It can be utilized interchangeable with h-189/GR handset.It meets the military standard MIL-H-55258B (EL), MIL-H-49078 (EL) 

Advantages:

IP 67 water and dust resistant
customized service is available
Low profile earpiece ensure the headset can be used  with a protective helmet.

Construction:

The handset consists of a noise canceling microphone, is equipped with a Press- To- Talk switch,a 6 foot (extended) retractile cord, and terminated in a 5 pin audio connector (U-229/U)

An interchangeable microphone and speaker version (PTE-M004N) is also available.
Lightweight noise cancelling
Immersion with IP68 sealed
Mechanic long-life PTT switch (up to 2000000 cycles)
Speaker Specification
 
Type  Transducer Moving coil dynamic speaker
Impedance  1000Ω±15% @1KHZ
Sensitivity  109dB±4dB at 1K at 1mw
Frequency respond  300-4KHZ
Rated input power 0.5W
Maximum input power 1W
 
Microphone Specification
 
Type Transducer Moving coil dynamic MIC
Sensitivity Range -65± 4dB @1KHZ
Impedance Max 150Ω ±10%at 1kHz
Frequency 300-3KHz

Environmental Conditions
Operating Temperature -30~75℃
Relative Humidity <96%
H-189/GR PTE-M003
Convenient push to talk handset