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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
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Description
220W 12V 24V Power Bluetooth Wireless TP3251 Stereo Audio Amplifier Board Treble and Bass Control SubwooferFeatures 1. TPA3251D2 power amplifier chip scheme is adopted: TPA3251D2 is a high performance class D power amplifier, which has class D efficiency and can bring real high end sound quality. The device features advanced integrated feedback design and proprietary high speed gate driver error correction (pure path TM HD). This technology can make the device maintain ultra low distortion in the whole audio frequency band and show high definition sound
Features1. TPA3251D2 power amplifier chip scheme is adopted: TPA3251D2 is a high-performance class D power amplifier, which has class D efficiency and can bring real high-end sound quality. The device features advanced integrated feedback design and proprietary high-speed gate driver error correction (pure path TM HD). This technology can make the device maintain ultra-low distortion in the whole audio frequency band and show high-definition sound quality at the same time.
2. Bluetooth-compatible 5.1 audio power amplifier module: 2.1 dual channel stereo output, output power 220W * 2 (left and right channels) + 350W (subwoofer), pure HiFi sound quality. The treble is pure and transparent, the midrange is gentle and delicate, and the bass is surging and shocking.
3. Classic appearance multifunctional main knob: the main knob adopts rotary encoder only used in high-end power amplifier to realize 360 degree stepless tuning. It feels smooth, one key start and stop, long press to start and stop, and the operation is simple and convenient.
4. Support mobile app control: newly upgrade Sini link app; Support to modify Bluetooth-compatible name; Set Bluetooth-compatible password; Off / on tone
5. Supported audio input: Bluetooth-compatible 5.1, AUX, USB sound card, USB flash disk
6. Heat dissipation mechanism: Heat sink + fan for heat dissipation, safe and worry free. Large area aluminum alloy heat sink with special-shaped structure and fan support are adopted to reduce the temperature and effectively ensure the full power operation of the product
Specification
1. Power supply: Above DC12-38V/10A
2. Bluetooth version: 5.1
3. Audio channel: 2.1 channels
4. Audio input: Bluetooth-compatible + AUX + USB flash disk + USB sound card
5. Audio output: left and right channels + subwoofer
6. Frequency range: 20Hz -- 20KHz
7. Volume adjustment: Encoder knob adjustment, smooth feel
8. Output power of left and right channels:
- 220W/3ohms--36VDC
- 175W/4ohms--36VDC
- 100W/8ohms--36VDC
9. Output power of subwoofer:
- 355W/2ohms--36VDC
- 250W/3ohms--36VDC
- 195W/4ohms-36VDC
10. Protection mechanism: Overvoltage, undervoltage, clipping, short circuit, overheating and other protection
11. Unique functions: Support sinlink app, modify Bluetooth-compatible name, set Bluetooth-compatible password, and turn off / on prompt tone
12. Product size: 130mm x 116mm x 27mm
Specification:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Better Night Sleep
Size: Queen, Unit Count: 2.0
These pillows has been letting me have a better nights sleep. Soft but not too soft. They keep their shape and gives my neck support as a side sleeper.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Comfortable pillows for side sleepers
Size: King, Unit Count: 4.0
Great pillows!
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Perfect Jumbo Size with Hotel-Quality Comfort & Support
Color: White, Size: Queen(Pack of 2)
I recently purchased the Jumbo size pillows. After trying a week, I couldn’t be happier with them! The size is perfect—nice and full without feeling bulky. They provide just the right amount of medium support, keeping my head and neck comfortable whether I’m sleeping on my back or side.
The 100% cotton cover feels soft and breathable, and the pillows stay cool throughout the night. I also love the gusseted design—it really helps the pillows maintain their shape and gives them that luxury hotel feel. Even after several nights of use, they haven’t gone flat.
Another big plus is that they’re machine washable, which makes maintenance super easy. Overall, these Jumbo pillows are plush, supportive, and great quality for the price. Highly recommend!
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Reviewed in the United States on March 1, 2026
★★★★★ 5
Best pillows we’ve ever had!
Color: White, Size: King(Pack of 2)
These are so insanely comfortable! They have the perfect amount of softness and support. Not too flat, not too full, just right. You will sink into it like a big marshmallow!
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Comfortable pillows 🤩
Color: White, Size: Queen(Pack of 2), Color: White, Size: Queen(Pack of 2)
I bought the Serta Hotel Collection Bed Pillows (Queen size) and I absolutely loved them. They are super soft yet provide great support; they feel very comfortable and help make for a much better, more pleasant night's sleep. Plus, the fabric is cool and of high quality. I recommend them wholeheartedly!
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Reviewed in the United States on April 22, 2026