型號 4-024+44-Y7

鴨咀式對講機耳骨振動傳導耳機 for FT-252,FT-257,FT-270 ,FT-277

-獨特的耳骨設計，使您在使用的時候不必擔心他會滑落
-讓您的使用更方便，更放心。
-固體震動傳遞聲音，音效更有保證，不會因為環境的噪雜
-使您不能有更好的聽覺享受

 耳骨式耳機
耳機特點：
選用振動式MIC送話器；
送話器抗噪功能；
送話器和受話器二合為一；
採用分離式航插PTT & 摩托車PTT控制發射；
佩帶舒適、隱蔽；
高強度環保PU線材，可靠性高，手感舒適。

說明：
1.拾音送音一體新款耳導式麥克風耳機，是聽、說合一的耳機；
2.拾音原理是靠耳導聲音振動感應，經過耳感麥克風拾音放大和將聲音過濾到抗噪功能；
3.送音是用現時體積最小、功率大、聲音清晰且加有電路保護的喇叭，能長時間通話，確保喇叭耐用；

包裝配有:
1 x 二合一耳骨傳導耳機

PRO Ear vibration w/cable control (not include plug)

Description
This new Ear-Vibration 2-in-1 Speaker/Mic is designed for professional use. The performance of this new model is greatly improved comparing to the ordinary Ear-vibration 2-in-1 Speaker/Mic.
Apart from being a headphone, the earpiece also translates the vibration of your earbone into an electric signal and transmits it through your transceiver to another two-way radio. With this 2-in-1 speaker/mic, you can get rid of a separate microphone.
The mechanism works as follows:
Mechanical vibration from earbone => electric signal => transmitted to radio transceiver
Since the speaker/mic is hidden in your ear canal, it is not sensitive to any background noise. This is exceptionally ideal for usage in high ambient environment such as driving, riding motorcycles and bicycles.
Without a separate microphone that could be easily detected by people around you, this is also ideal for surveillance purposes and security at airports, casinos, crowd control at conventions and concerts, and other working environment requiring discreet communications.
The sensitivity of the newly designed microphone is greatly improved to cover a much wider range of frequency. Graph 1 shows that an ordinary speaker/mic best performs in the range of 1400 to 1800Hz while the newly designed model shown in Graph 2 provides execellent performance in the range of 900 to 3900Hz. With a much more sensitive microphone, transmission becomes clearer and distortion is greatly reduced.
Specifications:
A metal clip enables you to secure the mic/speaker on clothes;
Technical data of Microphone:
Type: piezoelectric accelerometer;
Work voltage: 2.5-10V DC;
Impedance: 4.7K Ohm
Technical data of Speaker:
Power rating: Normal 20mW, Max 40 mW;
Resistance: 32 Ohm +/- 15% at 1KHz 60mW sine wave;
Sound pressure level: 107.3dB +/- 3dB at 1KHz 60mW with 142F coupler.
Professional 2-in-1 Ear Vibration Speaker/Microphone in connection with a PTT switch and the plug to the two-way radio

Compatible Radio Models:
FOR YAESU : 
FT-252,FT-257,FT-270 ,FT-277 ,HX-471,VX-120 ,
VX-120E,VX-127,VX-127E,VX-170 ,VX-170E,VX-177 ,
VX-177E,VX-220,VX-270,VX-300,VX-460,VX-6E ,VX-6R,
VX-6R,VX-7E,VX-7R,VXA-300,VXA-700,VXA-710 

PACKAGE CONTAIN
1 x 4-024 Ear-Vibration 2-in-1 Speaker/Mic
Mini Din Plug **This item is not include MINI Din plug connect to Radio , please choose option from below