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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24
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Description
ESP32-S3 4.2 Inch RLCD Full Reflective Display Development Board Supports Wi-Fi & BLE Dual-Mode Communication Without Battery, 335071. Features a high performance Xtensa 32 bit LX7 dual core processor with a clock speed up to 240MHz 2. Supports 2. 4GHz Wi Fi and Bluetooth 5 (LE) with built in antennas 3. Includes 512KB SRAM and 384KB ROM, while stack integrated with 16MB Flash and 8MB PSRAM 4. Features a 4. 2 inch full reflective display with 300 x 400 resolution, offering reflective imaging and eliminating the need for backlighting 5. Equipped with a dual microphone array
1. Features a high-performance Xtensa 32-bit LX7 dual-core processor with a clock speed up to 240MHz
2. Supports 2.4GHz Wi-Fi and Bluetooth 5 (LE) with built-in antennas
3. Includes 512KB SRAM and 384KB ROM, while stack-integrated with 16MB Flash and 8MB PSRAM
4. Features a 4.2-inch full-reflective display with 300 x 400 resolution, offering reflective imaging and eliminating the need for backlighting
5. Equipped with a dual-microphone array enabling audio algorithms like noise reduction and echo cancellation, ideal for precise voice recognition and near-field/far-field voice wake-up applications
6. Onboard PCF85063 RTC real-time clock and SHTC3 temperature/humidity sensor for precise RTC time management and environmental monitoring
7. Integrated 18650 lithium battery holder and RTC backup battery holder (requires rechargeable RTC battery), supporting dual-mode operation: main power supply and independent RTC backup
8. Onboard Micro SD card slot for external storage of images or files
9. Two customizable side buttons (KEY and BOOT) for developing user-defined functions
10. Reserved 2 x 8-row female header (2.54mm pitch) for external expansion
Specifications
1. Display panel: fully reflective screen
2. Display size: 4.2 inches
3. Display resolution: 300 x 400
4. Gray scale levels: 2
5. Communication interface: SPI
6. Display method: fully reflective
7. Driver IC: ST7305
8. Display colors: black, white
9. Size: about 9.25 x 6.91 cm
Packaging list:
- ESP32-S3-RLCD-4.2-EN host x 1
- Acrylic stand x 2
- 8-ohm 2W MX1.25 2PIN speaker (forward) 80mm x 1
- Screwdriver x 1
Specification:
| Package Weight |
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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
4.1 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Effective Cabin Air Filter – Fresh and Clean Air for My Car
I recently replaced my car’s cabin air filter with the AC85111 activated carbon filter, and I’ve noticed a clear improvement in air quality inside the vehicle. It helps keep the cabin air fresh, especially during daily commutes and long drives.
The activated carbon layer does a good job of reducing dust, odors, and outside pollution, making the driving experience more comfortable. I also noticed less smell from traffic fumes and general road dust entering the car.
The fit was perfect for my Honda Pilot, and installation was simple without needing any special tools. It is compatible with several Honda and Acura models, which makes it a reliable replacement option.
The material feels well-made and sturdy enough for regular use, ensuring consistent airflow while filtering out impurities effectively. Considering its performance and durability, it also offers good value for money.
Overall, this is a practical, easy-to-install, and reliable cabin air filter that helps maintain cleaner and fresher air inside the car.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 5
Good fit for our Honda Accord, quality filter
This was the perfect fit for my daughter's Honda Accord. It's a solid, budget‑friendly upgrade that fits perfectly. It only took a few minutes to install. The pleated material feels sturdy, and the activated carbon layer helps cut down on odors and everyday cabin dust.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 5
No more funky smell!
Have had a funky smell for a while in my car. Air fresheners just couldn't quite cover it up.
I pulled the old filter out which was reallll caked up with stuff and got the new one in. Not only is the funky smell finally gone, but the HVAC is a lot quieter when on full blast, and it blows the air harder.
It fit great, installation was easy, and having the smell gone makes it worth absolutely every penny.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 5
happy engine. good mileage
Color: CA9683
Fit my 05 Tacoma great! Have had good response with the engine and it's acceleration. Fuel mileage is back on par. Will buy again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 18, 2025
★★★★★ 5
Kax brand
Color: CA9683
Perfect for my 07 FJ! Looks of great quality over fram low end...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2025
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