Power-Time Skull Microphone Fire-fighter Headset
Bone conductive microphone located inside the helmet.
Unique fastening strap mounts into most kinds of helmets, perfect for fire fighters, Gas mask wearers etc.
* The superiority of reducing full-spectrum noises
* Great speech intelligibility
* Comfortable fit
* Fire-proof cable and headset, strong and durable.
a. Kevlar reinforced PU cable, more sturdy which is cold and heat resistant.
b. 1 speaker type and 2 speakers type for choice
c. Clear voice picked up from the skull,
d. Nexus 4 pole connector,match with Power-Time IP67 D type PTT as well as most popular PTT adapters
||Transducer Moving coil dynamic speaker
||32±15% Ω AT 1KHZ
||99dB±3%/40mW on a 6CC Coupler
||600 Hz～ 4 KHz
|Rated input power
|Maximum input power
||-31 ± 3dB RL=2.2K Ω Vs=2.0V(DC)
|Current Consumption Max
||0.5uA (at RL=2.2KΩ Vs=2.0V(DC))
|Max Sound pressure Level
||115dB S.P.L( at 1K Hz THD<10%)