Обучающее оборудование для языковой лаборатории с профессиональной гарнитурой

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Price:11,00 $ - 13,00 $
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Product Overview

Description



Product Description


 


















Product Introduce:




  • Headphones:


    1.  Frequency Response: 125Hz ~ 8000 Hz, ± 17 dB (0dB = 20uPa The) (input power = 1mW).


    2.  Electrical Impedance: 32Ω± 20%.


    3.  Sensitivity100dB/1mW (0dB = 20uPa).




  • Microphone:


    1.  Frequency response: 40-20000HZ.


    2.  Type: electrets microphone.


    3.  Sensitivity: -47 ± 2 dB (0 dB = 1V/Pa).


    4.  Directional type: two-way.




RJ11 headset

Teacher’s Computer (Monitor + Host):


CAN NOT use laptop/ IPad/ Notebook.


CPU: I5/RAM: 4G, 1T.


Host need use VGA port, CAN NOT use DVI, HDMI port type host.


Computer Host Net-Port: 1000M



Computer system:


Win7/8/10-32Bit/ 64Bit



 





Company Information


Shaanxi GREELAN Technology Development Co., Ltd, established in 2003, which is specialized in the digital language lab, with strength on language learning system, language lab equipment, and language lab software. Our companies own the import and export rights and pass the FCC, CE, ISO9001, ISO18001, CCC, etc., authentication. At present, we have 12 hardware patents and 4 software copyrights. We aim to help people learning language easier and happier.


GREELAN FAMILY


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Our Services


1. One Stop Service


a. Pre-sales: make a comprehensive project plan for customer.


b. After-sales: offer customer service whenever you have a question.


2. Advanced Technology


a. Hardware: less equipment to make the connection easy and save the cost.


b. Software: simple, practical and multifunctional.


3. High Standard Quality Control


a. Strict inspection during the production.


b. Careful test of every equipment before shipping.


4. Fast and timely delivery


a. Product preparation: 7-10 days.


b. Delivery: timely delivery once the goods are ready.


 All Products





Certifications


FCC / CCC / ISO9001 / ISO18001 / ISO14001


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Why Choose Us


 


I hope to cooperate with you and be your partner!


 


1. One Stop Service


 1) Pre-Sales - Make FREE plan especially for your project.


 2) After-SalesOffer customer service whenever you have a question.


 2. Advanced Technology


 1) Hardware - Less equipment to make the connection easy and save the cost.


 2) Software - Simple, Practical and multifuctional


 3. High Standard Quality control


 1) Strict inspection during the production.


 2) Careful Test of every equipment before shipping.


 4. Fast and timely delivery


 1) Product preparation - 7--10 days.


 2) Delivery - Timely delivery once the goods are ready.


 


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