Best in 7 days
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Ships within 48 hours · Estimated delivery Oct 12 - Oct 17
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
HappyModel CrazyF4 ELRS 900MHz Whoop/Toothpick AIO Flight Controller w/ 8Bit 5A ESCThe world's first AIO 5in1 whoop flight controller with built in ExpressLRS receiver is coming out now. This F4 flight controller has a built in 5A esc, VTX, OSD, high performance 900MHz ExpressLRS receiver, its best for 1S Long Range and whooping. Check out our other Whoop Toothpick flight controllers, as well as the rest of our HappyModel selection! Specifications Input Voltage: 1S LiPo MCU: STM32F411CEU6 Gyro: MPU 6000 OSD: Yes UARTs: 2 Sets ESC
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
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.4 ★★★★★
Based on 204 reviews
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Product Reviews
★★★★★ 5
Great for sublimation
Color: 1BK/1C/1Y/1M
Great for sublimation. Colors r vibrant and dries fast. Easy to install and is compatible with my epson peinter
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Great quality, Great price
Color: 1BK/1C/1Y/1M
Excellent transfer and image quality. It really does work in an Epson Eco tank, as long as you never fill it with the Epson ink.
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Reviewed in the United States on April 25, 2026
★★★★★ 5
Love
Color: 1BK/1C/1Y/1M
Works very well. Color is on point. Worth the money. No clogs. No leaks.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Great overall
Color: 1BK/1C/1Y/1M
Great price, great quality and super easy to use!
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Easy to use vibrant colors
Color: 1BK/1C/1Y/1M
This is a great sublimation ink!!
Easy to use, easy to fill my epson ecotank
Great colors when heat pressing
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Reviewed in the United States on April 16, 2026
