Home Wireless Microphone FM Transmitter DIY Kit (with Antenna)

Wireless Microphone FM Transmitter DIY Kit (with Antenna)

SKU: TB-Microphone
Sale price 2,64 €
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📦 From 50€ in Germany, 100€ in the EU, 45€ in the US!
  • EU & US Delivery:  10 working days
  • Other Countries:  15 working days
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Wireless Microphone FM Transmitter DIY Kit (with Antenna)

Wireless Microphone FM Transmitter DIY Kit (with Antenna)

2,64 €

The Wireless Microphone FM Transmitter DIY Kit is an engaging and entertaining project for electronics enthusiasts and DIY lovers. This kit allows you to build a fully functional FM transmitter that can broadcast your voice or other audio signals over a wireless frequency. Perfect for hobbyists and educational purposes, this kit provides a hands-on experience in electronics assembly and radio technology.

 

Note: The default kit is shipped as separate components, and you will need to assemble it yourself. For this kit, you may require the following tools:

  • Soldering iron
  • Multimeter
  • Solder wire
  • Soldering iron stand
  • Diagonal pliers
  • Screwdriver
  • Tweezers
  • Needle-nose pliers
  • Desoldering pump
  • Cleaning sponge
  • Screwdriver set

 

Key Features

Transmission Frequency: The device operates at a minimum frequency of 70 MHz, covering all university campus broadcasts in China, FM broadcasts, and Japanese broadcasts, etc. The default shipping frequency is around 70 MHz. Adjust the L1 inductor to change the transmission frequency. After assembling and powering on the device, you can receive signals using a regular radio after a slight adjustment.

 

Specifications

  • Brand: EQKIT
  • Model: RF-01
  • Operating Voltage: 1.5V (2 AAA batteries) or DC 3-6V
  • Operating Current: 5mA (3V) – 10mA (6V)
  • Frequency Range: 70 MHz – 110 MHz (default minimum frequency)
  • Transmission Distance: 5-30 meters (inflated by assembly quality and environmental factors)
  • Antenna Length: 200mm soft wire included
  • Sensitivity: Receivable within 1 meter of speaking distance
  • Battery Box: Yes, with a black shell included
  • PCB Dimensions: 49mm x 13mm
  • Overall Dimensions: 55mm x 35mm x 15mm
  • Assembly Instructions: Electronic version (including circuit diagram); please request from customer service after purchase
  • Kit Weight: 18 grams

 

Important Notes:

Due to the simplicity of this circuit, the transmission frequency can be significantly affected by the environment. Touching or getting close to the circuit board, antenna, or housing may cause the transmission frequency to change. This kit is recommended for educational use rather than industrial or commercial applications. For a more stable FM transmitter kit, please click the provided link.

 

Debugging Instructions:

After soldering, carefully check the PCB for any soldering issues, such as cold joints and short circuits. Finally, insert two AAA batteries that you purchase separately. Press the red switch to turn on; the transmitter will then operate normally. If you are using a standard 88-108 MHz radio, it is recommended to separate the L1 inductor by about 2 mm. Refer to the assembly guide's images for further instructions on adjusting the inductor.

 

Complete Kit Includes:

  • All components (Package 1 includes battery box)

 

DIY Essential Reads:

Electronic assembly requires a basic understanding of electronics and manual skills. Since each person's skills and techniques vary, we cannot guarantee that everyone will succeed with the DIY process, but we promise 100% after-sales service and will do our utmost to assist you in completing the assembly. Therefore, if the finished product does not meet the described performance, please do not rush to leave feedback—remember to contact our after-sales service. Thank you for your cooperation!

1. General Shipping Information

  • We provide premium shipping methods with a tracking number for each order.
  • Shipping addresses must be entered in English without special symbols to help the courier company recognize your address in the system. We will ship strictly according to the shipping address you provided. Please notify us of any address change before your order is marked "Shipped" to avoid parcel loss.
  • Please contact our customer service staff immediately if you need to cancel or change an order. Once your order has reached "Shipped" status, it can no longer be canceled or changed in any way. To avoid complications, please recheck your shopping cart before checkout.
  • We can ship all in-stock orders within 1 business day after your order has been confirmed.
  • All items are inspected before dispatch and are carefully hand-packed.
  • With standard courier practice, you need to check the contents of the parcel before signing for your goods. Otherwise, we will not be held responsible for any damage that may have occurred in transit.

🚀 Need Faster Shipping?

If you require expedited shipping (Express), please contact our customer support team at info@openelab.io for a customized quote tailored to your location.

2. Shipping Rates & Options

Our shipping rates are calculated based on the order value and destination. Please refer to the tables below for details.

2.1 Germany (Domestic)

Shipping Method Order Value Cost Est. Delivery
Deutsche Post €0 - €50.00 €4.95 2-4 Business Days
Deutsche Post Over €50.00 Free 2-4 Business Days
DHL Paket
(Faster Delivery)
€0 - €50.00 €6.95 1-3 Business Days
DHL Paket
(Faster Delivery)
€50.00 - €100.00 €2.00 1-3 Business Days
DHL Paket
(Faster Delivery)
Over €100.00 Free 1-3 Business Days

2.2 European Union (EU)*

*Including:

Åland Islands, Andorra, Austria, Belgium, Bosnia & Herzegovina, Bulgaria, Croatia, Czechia, Denmark, Estonia, Faroe Islands, Finland, France, Gibraltar, Greece, Guernsey, Hungary, Ireland, Isle of Man, Italy, Jersey, Latvia, Lithuania, Luxembourg, Malta, Moldova, Monaco, Montenegro, Netherlands, North Macedonia, Poland, Portugal, Romania, San Marino, Serbia, Slovakia, Slovenia, Spain, Svalbard & Jan Mayen, Sweden.*
Shipping Method Order Value Cost Est. Delivery
Deutsche Post €0 - €100.00 €7.95 5-9 Business Days
Deutsche Post Over €100.00 Free 5-9 Business Days
DHL Paket
(Faster Delivery)
€0 - €100.00 €15.95 3-7 Business Days
DHL Paket
(Faster Delivery)
€100.00 - €250.00 €7.95 3-7 Business Days
DHL Paket
(Faster Delivery)
Over €250.00 Free 3-7 Business Days

2.3 United States

Region Shipping Method Order Value Cost Est. Delivery
Continental U.S.
(50 States)
USPS Ground Advantage €0 - €45.00 €5.95 3-7 Business Days
USPS Ground Advantage Over €45.00 Free 3-7 Business Days
USPS Priority Mail €0 - €45.00 €16.95 1-4 Business Days
USPS Priority Mail Over €45.00 €14.95 1-4 Business Days
Non-Continental U.S.
(AK, HI, PR, etc.)
USPS Ground Advantage €0 - €60.00 €6.95 5-9 Business Days
USPS Ground Advantage Over €60.00 Free 5-9 Business Days

* The regions in the Non-Continental U.S. include: Alaska, American Samoa, Guam, Hawaii, the Marshall Islands, the Northern Mariana Islands, Palau, Puerto Rico, the U.S. Virgin Islands, and all U.S. Armed Forces addresses. The shipping and delivery to these areas are subject to the Non-Continental U.S. shipping rules.

2.4 International (Outside EU)

For specific international destinations, including Switzerland, United Kingdom, and Norway.

Order Amount Shipping Cost
€0 - €300.00 €19.95
Over €300.00 Free

Important Notice:

  • Inventory Status: Please check the inventory status on the product page. Our system displays real-time stock for our Munich and Long Beach warehouses. If an item is out of stock in these locations, it will be marked as "Pre-order". You can still place an order for these items.
  • Pre-order Fulfillment: For "Pre-order" items, we arrange the most efficient logistics solution to ensure you receive your goods as quickly as possible. Your package may be shipped directly from our Shenzhen warehouse. Alternatively, as part of our standard restocking process, we may transport the goods to our Munich or Long Beach warehouse first (typically taking 5-10 business days) before dispatching them to you.
  • Split Shipments: If your order contains both in-stock and Pre-order items, we will prioritize shipping the in-stock items from the local warehouse immediately. The remaining Pre-order items will be sent to you in a separate shipment once they are ready.

3. International Warehouse

Our products are stored in our Munich, Long Beach, and Shenzhen warehouses to provide more flexible logistics solutions tailored to different regions and customer needs. On each product's description page, we indicate the specific warehouse location to help you better plan your purchase and delivery schedule.

3.1 German Warehouse

For products stored in our warehouse in Munich, we use either Deutsche Post or DHL for shipping, depending on the size of the package. Logistics within Germany are very efficient, with an estimated delivery time of 2-4 business days, ensuring you receive your order quickly and conveniently. For Western EU countries, the estimated delivery time is 4-6 business days. For Eastern EU countries, the estimated delivery time is 6-8 business days.

3.2 US Warehouse

For products stored in our warehouse in Long Beach, we use either USPS or UPS for shipping, depending on the size of the package. Logistics within U.S. are very efficient, with an estimated delivery time of 3-7 business days, ensuring you receive your order quickly and conveniently.

3.3 Chinese Warehouse

For Pre-order items or orders fulfilled directly from our Shenzhen warehouse, we utilize YunExpress for reliable international shipping. Given the complexities of international shipping, the estimated delivery time for these packages is around 10 business days, though this may vary slightly due to customs processes or other uncontrollable factors. Otherwise, products will be restocked to our Munich or US warehouses before final delivery, as detailed in the "Important Notice" above.

4. Customs and Taxes

4.1 How are customs handled by OpenELAB for import or export?

For EU Member States: Whether shipped from Germany or China, we cover all import duties and taxes (DDP), ensuring that you receive your package without any additional costs or hassle with customs.

Important Exception for Non-EU Countries (e.g., Switzerland, Norway):
For countries outside of the European Union, such as Switzerland and Norway, you may be subject to import duties, taxes, and/or customs fees charged upon delivery. These fees vary from country to country and are the sole responsibility of the recipient.

⚠️ Refusal of Delivery: If you refuse to pay these fees upon delivery and the package is returned to us, the refund amount will be calculated after deducting the original shipping costs, return shipping costs, and any applicable customs or storage fees.

4.2 How is VAT charged when the Customer places an order from OpenELAB?

In accordance with the newest VAT e-commerce rules in the EU, OpenELAB shall have the right to charge the amount of VAT at checkout. The standard rate of actual VAT applied is subject to the destination country's regulations. No additional VAT will be charged upon delivery for these orders.