Recently, the Haidian Park Management Office commissioned China Merchants International Tendering Co., Ltd. to conduct a domestic tender for the addition of LED large screen projects to the Haidian Park Amphitheatre.
The project has a preset capital of 1 million yuan. The bidding target is an independent legal person registered in the mainland. The deadline for bidding is 9:00 am (Beijing time) on December 10, 2010.
Electret Condenser Microphone, is a kind of acoustic power conversion device, which belongs to the capacitor microphone.The electret capacitors in the electret capacitor are used as either the diaphragm or the back pole, which can be used to store charge, so no additional polarization power is required.At the same time, the output sensitivity is greatly improved due to the built-in field effect tube.
Electret Condenser Microphone is Small volume, high temperature resistance, strong stability, low failure rate, to adapt to the environment, high sensitivity, small current, low noise, high quality
Electret Condenser Microphone is be applied to Mobile phone, bluetooth headset, MP3, MP4, PAD, digital camera, voice recorder, wearing headphones, portable megaphone, directional control pickup, community intercom, outdoor interphone, meeting mike
Electret Condenser Microphone
Electret Condenser Microphone,Electret Microphone,Back Electret Microphone,Condenser Microphone
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