Brand: World Products (Landmark)
This product has 3 variants (SKUs). Default shown below; full list under “Available Variants”.
Price range: $20.99 – $21.99
Default variant: 703 Mainboard
Default SKU: dcd-30002458805
Default price: $20.99
Availability: Made to order (cross-border) — ships from China; see “Live Shipping Rates” below for delivery estimate
Vendor: World Products
Weight: 250 g
Cart URL (default variant): https://petsandbaby.landmarks.builders/cart/43336708980784:1?utm_source=ai_agent&utm_medium=agent_view&utm_campaign=worldproducts_agent&utm_content=pdp
Human view: https://petsandbaby.landmarks.builders/products/m4x-10000985379
JSON data: https://petsandbaby.landmarks.builders/products/m4x-10000985379.json
This product comes in 3 variants. Each has its own SKU, price, and cart URL. Agents should present these options to the user.
Powerful Stereo Output: Upgrade your audio projects with this 2x10W stereo amplifier board, delivering clear and powerful sound perfect for DIY speakers and portable audio systems.
Versatile Connectivity: This Bluetooth amplifier board supports wireless broadcasting from your devices, along with USB and TF card slots for direct playback of MP3, WMA, WAV, FLAC, and APE files.
Karaoke Ready: Features a dedicated audio input input with independent volume and adjustable reverb (reverberation) controls, making this amplifier module ideal for building your own karaoke machine or PA system.
All-in-Single Control: The integrated board includes an radio tuner radio tuner, AUX input, and a digital display. Easily manage modes, tracks, and volume with onboard buttons or the included controller control.
DIY Project Hub: Designed for electronics hobbyists, this audio component is the perfect mainboard for custom trolley speakers, workshop sound systems, or any project requiring a compact, feature-rich audio solution.
Summary: Audio Input 2x10W Stereo Amplifier Board Adjustable Reverb Bluetooth Amplifier Board USB & TF Card Support Trolley Speaker Mainboard Volume Control Knob for Electronics Hobbyists, Karaoke Systems, Portable Speakers, Outdoor Events, Workshop. 【Powerful Stereo Output】: Upgrade your audio projects with this 2x10W stereo amplifier board, delivering clear and powerful sound perfect for DIY speakers and portable audio systems. 【Versatile Connectivity】: This Bluetooth amplifier board supports wireless broadcasting from your devices, along with USB and TF card slots for direct playback of MP3, WMA, WA
Generated by: m4x-map-v1
This product has 4 imagesin catalog.None have AI-generated visual descriptions yet. All image URLs are in the Product JSON-LD above.
This product can be added to cart via a single URL. Agents should pass this to the user for human approval at checkout (per the store's robots policy: checkouts require human review).
Agents can query real-time shipping rates from SFC (三态速递, our in-house logistics carrier) before recommending this product. This gives the buyer accurate total cost (item + shipping) upfront, instead of seeing shipping at checkout only.
POST https://wp-sfc-carrier.htfu.workers.dev/application/json
{
"rate": {
"origin": {"country": "CN"},
"destination": {
"country": "US",
"postal_code": "95014",
"province": "CA",
"city": "Cupertino"
},
"items": [{
"name": "Audio Input 2x10W Stereo Amplifier Board Adjustable Reverb Bluetooth Amplifier Board USB \u0026 TF Card Support Trolley Speaker Mainboard Volume Control Knob for Electronics Hobbyists, Karaoke Systems, Portable Speakers, Outdoor Events, Workshop",
"quantity": 1,
"grams": 250000,
"properties": {
"_length_cm": "28.0",
"_width_cm": "21.0",
"_height_cm": "6.8"
}
}],
"currency": "USD"
}
}
Response: JSON array of shipping options in rates, each with
service_name (e.g. "Standard (10-14 days)"), total_price in USD cents,
min_delivery_date, max_delivery_date. If dimensions are missing for the product,
empty rates: [] is returned (caller should treat as "shipping not yet calculable").