Store category

Sign Up Now !

You may also like

DIY Electronic

Product Description

1. Description

MIC is the electret microphone, its role is to sense the weak sound vibrations in the air, and the variation of the output with the same sound signal. Site selection is the high sensitivity of the microphone, usually tens of millivolts above can output audio signals, the signal level high enough modulation frequency of the oscillation signal.

Note: The microphone has positive and negative points, usually connected to the anode and the shell.

2.Performance parameters

Frequency Range: 80MHz-108MHz

Operating voltage: DC1.5V-6V

3. parts list

part number

Part name

Specification

QTY

R1、R3

Resistance

2.2k

2

R2

Resistance

22k

1

R4、R5

Resistance

33

2

C1、C2、C8

Ceramic capacitors

104

3

C3

Ceramic capacitors

681

1

C4、C6、C7

Ceramic capacitors

30P

3

C5

Ceramic capacitors

10P

1

Q1

Transistor

9018

1

L

Inductance

4T

1

TX

Wireless microphone antenna

50cm

1

NOTE: please divide the pin into 3P and 2P

Pin (antenna)

3P

1

Pin (power supply)

2P

1

MIC

Electret microphone

 

1

 

PCB board

30X25mm

1



Including:

Electronic learning kit wireless microphone x 1set
  • We accept only PayPal payment.
  • Please do not email us to ask for other payment option.
  • Item will be shipped within 3 working days after full cleared payment is received.  But (Holidays excepted)
  • We only ship to the approved address by Ebay. Please make sure your address in Ebay is correct.
  • Shipping&Handling cost include:  postage, handing charges and packaging materials.
  • A notification email of dispatch will be sent to buyer after item is posted.
  • Sometimes the package maybe stay at customs for long time,Please understand international shipping.
  • More FAQ about Delivery,See about 

Country

Standard Delivery Time Summary

Business Days(Holidays not included)

9-12 
13-16 
17-19 
20-22 
23-27
35+   

Business Days + Weekend

10-14 
16-20 
18-23 
25-30 
32-39
49+   

UK

Item Arrived Ratio

12.0%
60.5%
28.3%
5.2%

Refund

USA

Item Arrived Ratio

8.5%
54.3%
28.0%
9.2%

Refund

Canada

Item Arrived Ratio

4.0%
48.2%
28.0%
15.3%

Refund

Australia

Item Arrived Ratio

20.8%
51.0%
14.0%
10.0%

Refund

Europe

Item Arrived Ratio

10.3%
24.2%
47.4%
13.1%
6.0%
 Refund  

Other

Item Arrived Ratio

3.8%
15.0%
28.0%
53.0%
12.1%
Refund  
  • We leave Positive feedback after full payment is received !
  • We really need your  Positive feedback  and  Five stars .
  • On eBay, a NEUTRAL feedback rating is treated exactly the same as a NEGATIVE feedback. Please do not leave negative or neutral feedback without contact us to help resolve any issue.
  • We are committed to your satisfaction after your purchase. If you are not satisfied with your purchase in any way please give us an opportunity to try and make it right before leaving feedback.
  • We usual answer your question within 1 working days.
  • Customer Service Hours: Monday-Firday: 9:00 am - 5:00 pm  (Beijing Standard Time).
  • Refund or exchange is allowed if there is a mistake in auction description or during shipping.
  • In the unlikely event that a return is request, all returns must include all original items undamaged, in re-saleable condition, all original packaging including manuals, warranty forms, etc. Shipping and handling fees are not refundable.
  • Buyer is responsible for shipping costs incurred shipping products back.
  • Any non-received items caused by invalid address registered on Ebay are not in our full refund or replacement policy.
  • It is assured your information will not be given, sold, rented or loaned to any third party.
PushAuction