Microphone amplifier signal amplifier

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{"cid":"116020","pid":"21958627","pimg_url":"\/\/img1.b2bforus.com\/c5\/68\/9dbf1ab4937a\/product\/73711200_s-w400xh400.jpg","name":"The microphone preamplifier microphone preamplifier can increase to signal anti-interference and receive distance","attrs":{"Price":"$300.00(1 - 49 Sets) $290.00(50 - 99 Sets) $280.00(>=100 Sets)","MOQ":"1 Set","Delivery Time":"Negotiable","Brand":"Soundmark"}}

{"cid":"116020","pid":"21958624","pimg_url":"\/\/img1.b2bforus.com\/c5\/68\/9dbf1ab4937a\/product\/73711215_s-w400xh400.jpg","name":"Microphone amplifier microphone amplifier for linking multiple wireless receiving hosts to enhance anti-interference potential.","attrs":{"Price":"$300.00(1 - 49 Sets) $290.00(50 - 99 Sets) $280.00(>=100 Sets)","MOQ":"1 Set","Delivery Time":"Negotiable","Brand":"Soundmark"}}

{"cid":"116020","pid":"21958620","pimg_url":"\/\/img1.b2bforus.com\/c5\/68\/9dbf1ab4937a\/product\/73711200_s-w400xh400.jpg","name":"The microphone preamplifier microphone preamplifier can increase to signal anti-interference and receive distance","attrs":{"Price":"$300.00(1 - 49 Sets) $290.00(50 - 99 Sets) $280.00(>=100 Sets)","MOQ":"1 Set","Delivery Time":"Negotiable","Brand":"Soundmark"}}