As a type of electronic buzzer with integrated structure, buzzers, which are supplied by DC power, are widely used in computers, printers, photocopiers, alarms, electronic toys, automotive electronic devices, telephones, timers and other electronic products for voice devices. Buzzers can be categorized as active and passive ones (see the following picture). Turn the pins of two buzzers face up, and the one with a green circuit board is a passive buzzer, while the other enclosed with a black tape is an active one.
The difference between an active buzzer and a passive buzzer is:
An active buzzer has a built-in oscillating source, so it will make sounds when electrified. But a passive buzzer does not have such source, so it will not tweet if DC signals are used; instead, you need to use square waves whose frequency is between 2K and 5K to drive it. The active buzzer is often more expensive than the passive one because of multiple built-in oscillating circuits.
- A passive buzzer that needs square signals of 2k-5k to drive, for it has no built-in oscillating source, and then makes sounds when energized.
- Use an S8550 PNP transistor for drive.
- Controllable sound frequency – it can make the buzzer beep like Do, Re, Mi, Fa, Sol, La, Ti.
- Working voltage: 3 - 5V; PCB size: 2.0 x 2.0 cm.
- With power light and indicator of digital signal output.
- Passive Buzzer Module x 1
- 3-Pin anti-reverse cable x 1
1. Order processing times
All orders are processed within 24 hours after they are placed. Usually, we are able to ship orders the next day. Weekend orders are shipped on the following Monday. You will receive a shipping confirmation email from our system when the shipping information has been uploaded.
2. Free Shipping on ALL orders
Generally, we will ship the orders with Free Shipping, without the minimum order amount requirement. You may check if the free shipping method is available to your country in the Delivery Area below.
If you don't find your country in the delivery area, please reach out to firstname.lastname@example.org, our sales staff will contact you ASAP.
For distributors, please contact us at email@example.com for more shipment details.
NOTE: All the orders will be shipped from our China warehouse.
3. Delivery Area
Hong Kong SAR, Japan, Macao SAR, Malaysia, Philippines, Russia, Singapore, South Korea, Thailand, Vietnam, etc.
Austria, Belgium, Czechia, Denmark, Finland, France, Germany, Greece, Hungary, Italy, Lithuania, Luxembourg, Monaco, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, Ukraine, United Kingdom, etc.
Australia, New Zealand
Canada, Mexico, United States
4. How do I track my order?
GOT A SUNFOUNDER ACCOUNT?
Easy Peasy! Log into your account through the online store, check out the fulfilment status against your recent order. If the order has been fulfilled, click onto the order information & you can find your tracking information here.
I DON'T HAVE AN ACCOUNT YET
As soon as your order is packed and shipped, you'll receive a shipping confirmation email. You will then be able to track your order through the tracking link on the email. If you haven't received an email yet, please reach out to us at firstname.lastname@example.org, our sales staff will contact you ASAP.
5. Shipping Method and Delivery Times
DHL(Orders Over $400)
UPS(Orders Over $400)
Delivery Time: 12-15 working days
You can track on https://www.17track.net/en
* Delivery Time - These are the delivery estimates provided by our shipping partners and apply from point of dispatch, not from point of sale. Once your parcel leaves our warehouse, we cannot control any delays after that point.
6. Customs & Import fees
Such as the products you buy on our site - can't simply be shipped freely from country to country. When goods are imported into a different country or customs territory, there is a charge called Customs Duty that must apply. This is charged by the local customs authority where the goods are being imported into.
If Customs Duty is payable to your territory, you'll be responsible for paying it to the authorities, so SunFounder isn't involved in this process. Whether Customs Duty is payable, and by how much, depends on a whole lot of different things. For example, many countries have a 'low value threshold' below which they do not charge any Customs Duty.
If you do have to pay Customs Duty though, the amount payable is usually calculated based on the value of the goods and the type of goods being imported.
AND IF I DON'T PAY THE CUSTOMS DUTY?
If, for whatever reason, you refuse the customs fee and the parcel is returned back to us. If you're still unsure on whether you'll be subject to customs fees, we recommend contacting your local customs office for more info before placing your order!
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