Hearing Aid Kit Audio Amplifier Loudspeaker Training Teaching Competition Electronic DIY Interest Production Parts

$11.01
Description:Voltage: 3VAudio output: 3.5M audio jack headsetPCB outline size: 45 * 30mmThe hearing aid kit consists of a microphone, a front low-amplifier, a power amplifier circuit, and a headphone jack. It has the characteristics of high sound receiving sensitivity, is practical for people with hearing impairment, and is simple to...
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$7.34

1642253

Out of stock

Description:

Voltage: 3V
Audio output: 3.5M audio jack headset
PCB outline size: 45 * 30mm
The hearing aid kit consists of a microphone, a front low-amplifier, a power amplifier circuit, and a headphone jack. It has the characteristics of high sound receiving sensitivity, is practical for people with hearing impairment, and is simple to produce and low in cost. This kit is also an ideal training kit for learning analog circuits.

Use suggestions:

After plugging in the earphones, there may be screams when you first turn on the power. Do not put them in your ears first. At this time, adjust the potentiometer to the position that does not scream, and then put them in your ears to adjust until the sound is clear.

Package included:

1 x Hearing Aid Kit

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When will my order be processed?
    All orders are handled and shipped out from our warehouse in USA and China. Please allow extra time for your order to be processed during holidays and sale seasons.
    We process orders between Monday and Friday. Orders will be processed within 3-10 business days from the order date and shipped the next day after the processing day. Please note that we don't ship on weekends.
    How long will it take to receive my order?
    Once you place your order, please allow 3-10 business days to process your orders. After that, it will take 25-45 business days for delivery in the United States, and 25-50 business days for international orders (depending on location).

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