Helmet Earphone Bi-directional Electret Condenser Microphone ,ECM Unit

Product Specifications

MODEL

BN9745L-453

Electro Acoustic Specifications

Directional Characteristic: Noise Cancelling

Sensitivity:-45±3 dB

Operating Voltage:1.0~10V 

Impedance:2.2(Max) KΩ

Current Consumption: <500μA

S/N Ratio ( A weighted network):58(Min) dB

Maximum Input Sound Pressure Level:110dB

MEASUREMENT CIRCUIT

TYPICAL FREQUNENCY RESPONSE

 APPEARANCE DRAWING

  Advantages:

1.Stable performance ,reliable quality and competitive price

2.Professional in R&D

3.Quality system certification

 Package :

1.Sample in stock.

2.Goods package in box with foam and delivery by discout expresss

Shipping:

It depends on the quantity ,please email us for concret date.

1. The price depends on the quantity.We can offer you the best competitive price at the market with the same even better quality. 

2.We can provide technology support
3. Top Quality+Reasonable Price+Responsible After Service=Successful & Win.
4. Help you design OEM&ODM or any your customized parameters and put into production.
5. Distributorship are offered for your unique design and some our current models