Bluetooth stereo speaker assembly kit with FM radio 87.5–108 MHz

The HU-075 is a DIY kit for assembling a speaker system featuring an LED spectrum visualizer, FM radio, Bluetooth connectivity, and a recording function. The kit includes a display with 12 pink, blue, and green LEDs that move to the rhythm of the music. The device can play audio from an FM radio, Bluetooth-enabled devices, an AUX input, a microphone (for recording), a USB flash drive, or a TF memory card, while the 3W 4-ohm speakers deliver clear, loud sound.
This electronic project is an excellent way to gain a better understanding of electrical circuits and develop soldering skills.

Features:

• Versatile Audio Sources: The device supports a wide range of audio inputs, including Bluetooth, FM radio, AUX, a microphone (for recording), USB flash drives, and TF cards. It can play MP3 or lossless music files, with the display indicating the currently selected audio source. Playback—such as play, pause, skipping tracks, and volume adjustment—can be controlled via a remote control or buttons located on the unit's housing.
• Audio Recording: The device allows for audio recording onto a USB flash drive or TF card; there are no limits on recording duration or capacity. Bluetooth Player: Thanks to an integrated Bluetooth receiver and power amplifier, the device can directly drive 4-ohm, 3W speakers, delivering clear, high-quality sound.
• LED Spectrum Visualization: The device features 12 pink, blue, and green LED indicators that flash in sync with the music, creating a dynamic and visually striking lighting effect. The LEDs flash simultaneously at both ends, and their sensitivity can be adjusted via a potentiometer.
• Dual-Channel Stereo System: The device can drive two 3W speakers (a 2.0 system), producing clear and powerful stereo sound. DIY (Do-It-Yourself) Assembly: This is a kit consisting of various components that the user must assemble and solder together. This process not only helps improve soldering skills but also fosters an interest in electronic technology. It is an excellent choice for electronics enthusiasts and beginners, as well as for use in schools or for home learning.

Features:

1. Audio player (FM / Bluetooth / AUX / USB flash drive / TF card)
2. Voice recording / playback / calling function
3. Color display and LED spectrum visualization
4. FM frequency range: 87.5–108.0 MHz
5. Dual-channel stereo speakers (3W x 2)
6. Controls: Play / Pause / Next / Previous / Volume Up / Volume Down / Mode Switch
7. Supported music formats: MP3, WMA, WAV, FLAC, APE
8. Settings saved after power-off
9. Remote control (infrared)
10. Adjustable LED spectrum visualization sensitivity

Specifications:

• Operating voltage: DC 5V
• Operating current: >1.0A
• Speaker: 3W, 4 ohms
• Channels: Dual-channel stereo sound
• Audio sources: Bluetooth / FM / AUX / USB flash drive / TF card
• FM stations: Automatic radio station scanning
• Reception frequency: 87.5–108.0 MHz
• Frequency precision: 0.1 MHz
• Control methods: Bluetooth / remote control / buttons on the device
• LED colors: pink / blue / green
• Output: speaker
• Audio formats: MP3, WMA, WAV, FLAC, APE
• Power connector: DC-005 jack
• Operating temperature: -20°C to 85°C
• Operating humidity: 5–85% (relative humidity)
• Dimensions (assembled device): 130x75x61mm

Usage:

1. The device can be turned on and off using the red/black switch.
2. MODE button: Used to change the audio mode. Pressing this button cycles through the following modes: Bluetooth, FM, AUX,
3. USB flash drive, or TF card. Note: If a USB flash drive or TF card is inserted, playback from it begins automatically (it takes priority). VOL+ button: Press briefly to skip to the next music track or FM station. Press and hold to increase the volume (V++).
4. PLAY/PAUSE button: Press briefly to play or pause music. Press and hold to initiate an automatic radio scan in FM mode and save the found FM station.
5. VOL- button: Press briefly to switch ...previous music track or FM station. Press and hold to decrease the volume (V--).
6. Potentiometer: Used to adjust audio sensitivity (using a screwdriver) for the LED spectrum display.
7. Recording function:
8. - A USB drive or TF card must be inserted to store the recorded audio.
9. - To start recording, press and hold the MODE button for approximately 3 seconds.
10. - To stop recording and begin playing back the recorded file, press and hold the MODE button again for approximately 3 seconds.
11. - The recorded file will be saved to the USB drive or TF card.

Claim orders from Stores

You can claim your purchased items within 1 - 4 work days after making an order (if product is in local warehouse).

Please wait for an email notification regarding Your order status update.

Vilnius Store address: Vytenio g. 20, LT-03229 Vilnius, Lietuva

Kaunas Store address: Pramonės pr. 4D, LT-51329, Kaunas, Lietuva

Local delivery in Lithuania

Purchased items are delivered locally through Venipak service. Depending on availability of items, orders are processed within 1-3 work days. Orders made until 1AM are shipped the same day.

Local delivery  (1-4 w.d.) price for items of any size is through through courier service is 4.90€ (incl. VAT), if the amount of the shopping cart exceeds 150€ - delivery is free.

Local delivery price to Venipak parcel terminals (1-3w.d.) is 2.90€ incl. VAT, if the amount of the shopping cart exceeds 50€ - delivery is free.

Local delivery price to Omniva parcel terminals (1-3w.d.) is 3.90€ incl. VAT,if the amount of the shopping cart exceeds 70€ - delivery is free.

Payment on delivery (COD) +2.00€ (incl. VAT).

You can pay for the goods at the time of delivery to the courier in cash or by credit card. Payment to Omniva parcel terminals is only possible by bank card.

A separate delivery fee applies to oversized items, regardless of the amounts and conditions stated above.

International delivery pricing through courier service

International shipping prices depend on geographic location:

Latvia - 5.50€ (incl. VAT)

Estonia - 6.50€ (incl. VAT)

Paid orders of more than 150€ are shipped for free to Latvia and Estonia.

other countries - negiotiated individually.

International delivery pricing to Omniva/Venipak parcel terminals

Latvia - 6.00€ (incl. VAT)

Estonia - 8.50€ (incl. VAT)

Payments:

We accept payments via PayPal for orders over 20€.