SPM-3300 3-LINE series heavy duty air duct headset set with three separate function sets: high reduction air duct headset, collar clip noise reduction microphone, independent tactical PTT control set.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specification parameters
Operating temperature	-20oC～55oC
Microphone operating voltage	1-10V
Microphone sensitivity	-38±3dB
Horn sensitivity	114±3 dB
Horn rated power	10mW
Micr impedance	2.2KΩ 3V
SPEAKER Frequency response	100-10KHZ
MIC Frequency response	100-10KHZ
Horn impedance	32Ω

 

 

Replaceable parts：

 

●High quality air duct

 

 

●Double-layer noise-proof silicone earplugs

 

 

 

●Soft silicone ear frame (specification: large, medium, small, left ear, right ear)

 

 

 

●Professional sponge earplugs (packing for 3 Units 1)

 

 

 

 

●Flexible high-rebound sponge earplugs

 

 

 

 

 

 

 

 

 

For radios cable connection enquiries, please click on this link