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Description
SpeedyBee F405 Mini Stack - F405 V3 FC + 35A 3-6S BLHeli_S 4-in-1 ESC - 20x20The SpeedyBee F405 Mini BLS 35A 2020 Stack features an upgraded F405 flight controller chip and a built in Bluetooth chip for seamless wireless Betaflight tuning. This board comes with a 4 level battery voltage display and a built in barometer and supports connectivity to all DJI Air Units. It offers 4 available UART ports, and a dual BEC setup with 5V 2A and 9V 3A outputs. The 35A 4 in 1 BLHeli_S Mini ESC provides four synchronized outputs with a
The SpeedyBee F405 Mini BLS 35A 20×20 Stack features an upgraded F405 flight controller chip and a built-in Bluetooth chip for seamless wireless Betaflight tuning. This board comes with a 4-level battery voltage display and a built-in barometer and supports connectivity to all DJI Air Units. It offers 4 available UART ports, and a dual BEC setup with 5V 2A and 9V 3A outputs.
The 35A 4-in-1 BLHeli_S Mini ESC provides four synchronized outputs with a continuous current of 35A, delivering strong power to drive all 2-4 inch and lightweight 5-inch quadcopters via a 4-6S battery. Equipped with a TVS transient suppression diode onboard, it better absorbs surge voltage, providing enhanced protection for the ESC.
Features
- TVS transient suppression diode for surge voltage absorption and enhanced protection
- Compatibility with 2-4 inch and lightweight 5-inch quadcopters
- Four synchronized outputs with a continuous current of 35A
- Dual BEC setup: 5V 2A output and 9V 3A output
- Built-in Bluetooth chip for wireless Betaflight tuning
- Supports connectivity to all DJI Air Units
- Upgraded F405 flight controller chip
- 4-level battery voltage display
- 35A continuous current output
- Supports 4-6S battery
- 4 available UART ports
- Built-in barometer
Specifications
SPEEDYBEE F405 V3 20X20 FLIGHT CONTROLLER
- DJI Air Unit Compatibility: Compatible with all DJI Air Units (DJI O3/RunCam Link/Caddx Vista/DJI Air Unit V1). Use specific solder pads for pin-to-pin connection. Note: UART1 is used for OSD and SUBS(R2) is used for SBUS receiver signal input
- BLE Bluetooth: Supported. Used to connect with the SpeedyBee App for flight controller and ESC parameter configuration. Note: MSP switch on UART 4 must be turned on and set to a baud rate of 115200 for Bluetooth functionality
- Wireless FC Firmware Flashing: NOT Supported. Connect to Betaflight configurator on PC for firmware update
- Wireless Blackbox Download & Analysis: NOT Supported. Connect to Betaflight configurator on PC for blackbox analysis
- Current Sensor Input: Supported. For SpeedyBee BLS 35A V2 ESC, set Scale=250 and Offset=-500
- Power Input: 3-6S LiPo. Powered through 8pin harness G, V wires or G, V pads from bottom side
- BOOT Button: Supported. Forces FC to enter DFU mode for firmware flashing
- 3.3V Output: Supported. Designed for 3.3V input receivers. Up to 500mA current load
- 4.5V Output: Supported. Designed for radio receiver and GPS module. Up to 1A current load
- Mounting: 20 x 20mm, 3.5mm hole diameter. Compatible with M2 and M3 screws/Silicone grommets
- I2C: Supported. DA & CL pads on the front side for magnetometer, sonar, etc
- Traditional Betaflight LED Pad: Supported. Used for WS2812 LEDs
- Supported Flight Controller Firmware: BetaFlight (Default), INAV
- BetaFlight Camera Control Pad: Yes. CC pad on the front side
- ESC Signal: M1 - M4 wires or soldering pads on the bottom side
- UART: 6 sets. UART1-6 with dedicated purposes
- Firmware Target Name: SPEEDYBEEF405MINI
- Buzzer: BZ+ and BZ- pad used for 5V Buzzer
- 5V Output: 4 groups. The total current load is 2A
- 9V Output: 1 group. The total current load is 3A
- DJI Air Unit Connection Way: Direct soldering
- Dimension: 30(L) x 32(W) x 7.8(H)mm
- Smart Port / F.Port: Not Supported
- ESC Telemetry: UART R5 (UART5)
- Blackbox: 8MB Onboard Flash
- RSSI Input: Not Supported
- OSD Chip: AT7456E chip
- IMU(Gyro): ICM42688P
- USB Port Type: Type-C.
- WIFI: Not supported
- Barometer: Built-in
- MCU: STM32F405
- Weight: 9.6g
SPEEDYBEE 35A BLHELI_s MINI V2 4-IN-1 ESC
- Mounting: 20 x 20mm ∅3.5mm hole size, compatible with M2 and M3 screws/Silicone grommets
- Power Output: VBAT (Battery voltage, used to power the flight controller)
- Current Sensor: Support (Scale=250 Offset=-500)
- ESC Telemetry: Not supported
- Burst Current: 45A (5 seconds)
- Dimension: 35 * 35 * 5.5mm
- ESC Protocol: DSHOT300/600
- Continuous Current: 35A * 4
- Firmware: BLHeli_S J-H-40
- Power Input: 3-6S LiPo
- Weight: 7.2g
Includes
- 1x SpeedyBee F405 V3 20x20 Flight Controller
- 1x SpeedyBee 35A BLHeli_S Mini V2 4-in-1 ESC
- 5x M2 Silicone O-Ring
- 5x M5 Silicone O-Ring
- 5x M2 Anti Vibration Silicone Grommets
- 5x M3 Anti Vibration Silicone Grommets
- 1x 8-Pin JST cable 30mm
- 1x 35V 470uf Capacitor
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
4.5 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
Clean Ingredients & Leaves Teeth Feeling Smooth
Size: Pack of 1, 4 Ounce, Set name: B. Whitening
I’ve tried many natural toothpastes, and this one quickly became a favorite. The texture feels smooth, and my teeth feel really clean after brushing. I love that it contains nano hydroxyapatite and is fluoride-free, especially for sensitive teeth.
The flavor is fresh without being overpowering, and it doesn’t leave a weird aftertaste. It’s also gentle enough for everyday use and makes my teeth feel polished and healthy. Definitely worth trying if you want a cleaner alternative toothpaste.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Perfect Fluoride alternative
Size: Pack of 1, 4 Ounce, Set name: B. Whitening
I bought this because it's popular in other countries like Japan. America is so behind using fluoride, when it's been proven to cause pituitary gland problems. If you're looking for a fluoride-free toothpaste look no further.
It works well, you just unscrew and apply to your brush. Pro tip: use a sonic toothbrush and glide on your teeth at a 45° angle. Using this toothpaste for months, 2 minutes twice a day, has made my teeth visibly whiter.
The flavor is not super strong, so it's suitable for kids and really anyone. Super easy and simple to use, it works like regular toothpaste. Smells minty, it's fluoride-free, and medium sized. It'll last me about 2 months, which I find worth it.
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Reviewed in the United States on April 28, 2026
★★★★★ 4
Fluoride who?
Size: Pack of 3, 4 Ounce, Set name: B. Whitening
Great product definitely works better than your traditional fluoride or fluoride free toothpaste it actually combats plaque and strengthens the enamel of your teeth I have physically and visibly seen the difference not just in my teeth but gums. Tastes great cleans well clean ingredients the only downside is it's unfortunately very pricey and if you're buying for not just yourself but a family it can start to add up fast just something to consider before purchasing. I love the tube and cap design it's gentle on your gums and teeth and it has good ingredients making the minty flavor taste more natural rather than a synthetic mint flavor and this product actually whitens your teeth. keep in mind that this isn't a replacement for teeth whitening treatments and it's also not a replacement for good dental hygiene like flossing/brushing multiple times a day. If your suffering from serious Dental issues this will not cure it but it is an excellent alternative to fluoride toothpaste that provide little to no benefit for your actual oral and overall dental health. The reason for four not five stars is because of the price I think if they could continue making the same product got the same level of quality for a little less money it would be a five-star item
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Reviewed in the United States on March 8, 2026
★★★★★ 5
URGENT!!!! REALLY WORKS!!!! Fact ✔️
Size: Pack of 3, 4 Ounce, Set name: B. Whitening
I was immediately convinced this would work due to its ingredients, I had a previous filling fallout. So I immediately requested he apply another filling while I was getting some other dental work done, and the dentist said there was no rush to install, A new filling, showed me a picture. It looked great still white no cavities. In the high definition, microscope photo he showed me,It almost look like the inside of a white Jacuzzi tub with molded seat, I had the rest of the work done and didn’t get to go back soon enough, and the tooth started to bother me when something sweet would hit that spot and I looked in the mirror and it was starting to turn a light brownish color, I had just heard about HA toothpaste, I did some research and this is what I found
Hydroxyapatite = the SAME mineral your teeth are made of
• Your enamel is mostly this material (like 70–97% of tooth structure) 
• So instead of adding a chemical… it’s literally rebuilding with the original material
When you brush with nano-hydroxyapatite:
• Tiny particles fill in microscopic cracks in enamel
• Helps reduce sensitivity
• Can make teeth look whiter naturally (smoother surface reflects light better)
• Strengthens teeth against future damage
so I ordered 3 pack Boka HA and on everything I love in three days of brushing for 2 minutes twice a day morning at night, do not brush your teeth with tapwater ever!!! It has more chlorine than a swimming pool, calcium lead, and other harsh chemicals that will take away the layer it’s going to build always use bottled water and do not rinse this toothpaste out of your mouth. Let it settle in and pack it into your molars and in between your teeth,it was completely healed and no sensitivity to sugar, hot or cold, it tastes great, and the fluoride free is the only way to go fluoride will destroy your tooth enamel, I gave the other two tubes to my kids and they love it, I am looking forward to less dental appointments for sure!!!!!
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Reviewed in the United States on March 21, 2026
★★★★★ 5
Five stars for BOKA without hesitation.
Size: Pack of 1, 4 Ounce, Set name: A. Ela Mint
I have tried a lot of natural toothpastes over the years and I can honestly say that Boka completely surprised me in the best possible way. From the very first use it felt like I had finally found a toothpaste that balances modern science with a clean ingredient philosophy. You will not be disappointed.
The standout ingredient here is nano hydroxyapatite, which is the same mineral that naturally makes up tooth enamel. That immediately caught my attention because instead of simply masking dental issues it actually supports remineralization. After learning more about nano hydroxyapatite and how it interacts with enamel I felt confident giving this toothpaste a real trial. The texture is smooth and creamy and it spreads easily across the teeth. Some fluoride free toothpastes can feel chalky or thin but this one feels refined and well formulated. It produces a gentle foam that feels pleasant while brushing but never overwhelming.
The flavor is another area where this toothpaste shines. It is refreshing without being harsh or overly minty. My mouth feels clean and balanced after brushing rather than blasted with artificial intensity. That subtle freshness actually lasts much longer than I expected.
After about two weeks of consistent use I started noticing that my teeth felt smoother throughout the day. That polished feeling you normally get right after a dental cleaning lasted longer than usual. My teeth also appeared brighter which was a welcome bonus.
Another thing I appreciate is the ingredient transparency. There are no questionable additives and it is completely fluoride free which is important for people who prefer alternatives that still support enamel health. Knowing that nano hydroxyapatite is widely used in advanced dental care products in other parts of the world made this even more compelling.
The packaging is clean and modern and the tube dispenses easily without making a mess on the cap. It feels like a premium product from start to finish. What really impressed me is how well this toothpaste balances effectiveness, comfort, and thoughtful formulation. It manages to feel gentle while still leaving my teeth incredibly clean and refreshed. If you are looking for a high quality fluoride free toothpaste that focuses on enamel support and a healthier approach to oral care then I highly recommend giving this one a try. It has absolutely earned a permanent place in my daily routine and it is one of the few natural toothpastes I genuinely look forward to using every day.
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Reviewed in the United States on March 12, 2026