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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:
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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
4.8 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Good choice for sensitive skin
Size: 25 Count (Pack of 1)
I purchased this in preparation for a trip. I wanted to be able to clean my face while on a flight but have super sensitive skin so normal makeup wipes burn and cause a lot of irritation. These are very similar to baby wipes. They have virtually no scent and work relatively well in getting off sunscreen. I haven tried with makeup yet so I can’t speak on that. I used about 2 or 3 and my face didn’t burn at all. I think it’s a good choice for those who want the convenience of a makeup wipe but can’t use regular ones.
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Reviewed in the United States on April 28, 2024
★★★★★ 5
Very gentle, yet effective
Size: 25 Count (Pack of 1)
These are a great bang for your buck! My daughter struggles with her sensitive skin. These make up wipes are so soft and feels like a gentle clothe. No obnoxious smells, and resealable. Perfect for traveling. Her skin feels great after wiping off the most stubborn water proof make up. The price makes it a no brainer!
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Reviewed in the United States on June 27, 2025
★★★★★ 5
Gentle but very effective in removing all types of makeup
Size: 25 Count (Pack of 1)
I had been using a different brand of make up remover towelettes for years until one day I opened up a new pack and my eyes swelled up and my skin looked burned around my eyes . A waited a few days & tried it again and same thing - only worse . It seems that the manufacturer changed the formula ( why manufacturers insist on fixing something when it’s not broken is beyond me ). Anyway , I googled and read up on all kinds of make up remover towelets and took note that the Simple Kind to Skin seemed to have the best reviews . I tried them and have been using them ever since . They are non greasy which I love , extremely gentle on the skin but excellent on removing makeup even stubborn waterproof mascara . And they don’t dry out your skin . Good product . Note to manufacturer : please do not EVER change this formula .
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Reviewed in the United States on June 4, 2018
★★★★★ 5
Good face wipes
Size: 1 Count (Pack of 2)
Nothing left out of description
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Reviewed in the United States on February 11, 2026
★★★★★ 5
Yes!
Size: Medium
Durable. Squeak doesn't last forever with my aggressive chewers but crinkle does. Best balls.
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Reviewed in the United States on September 28, 2025