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Description
Happymodel Mobula8 O4 2S Digital HD 85mm Micro FPV Whoop Drone - ELRS 2.4The Happymodel Mobula8 O4 micro FPV whoop comes out now . It comes with DJI O4 air unit which would provide excellent and unbelievable FPV footage. We added FOV Extender for the O4 camera on Mobula8, this would be a great improvement for FPV flying. Here is our recommended 2S 550mAh Battery that fits perfectly in this drone! Check out our Micro Whoop Drones, our entire Happymodel Products and The Digital BNF PNP RTF Collection. Features: Equipment
The Happymodel Mobula8 O4 micro FPV whoop comes out now . It comes with DJI O4 air unit which would provide excellent and unbelievable FPV footage. We added FOV Extender for the O4 camera on Mobula8, this would be a great improvement for FPV flying.
Here is our recommended 2S 550mAh Battery that fits perfectly in this drone!
Check out our Micro Whoop Drones, our entire Happymodel Products and The Digital BNF/PNP/RTF Collection.
Features:
- Equipment with DJI O4 air unit and external FOV Extender
- ND Filters ready
- 2S battery support Powerful and Smooth freestyle flying
- UART ExpressLRS receiver support stable control link
- Recommend use 2S 550Mah battery
Specifications:
- Item Name: Mobula8 O4 2S 85mm Digital HD Micro FPV whoop
- Wheelbase: 85mm
- Size: 120mm*120mm*53mm
- Weight: 50g
Spare parts specifications:
| Motor | Mode: EX1103 KV11000 Configu-ration:9N12P Stator Diamter:11mm Stator Length:3mm Shaft Diameter:Φ1.5mm Motor Dimension(Dia.*Len):Φ13.5mm*15.5mm Weight(g):3.8g No.of Cells(Lipo):1-2S |
| Propellers | Weight:0.88g Material: PC Pitch:2.3inch Props Dia:52.17mm Center Thickness:5mm Center Hole Dia:1.5mm |
| Flight controller | MCU: STM32F405RGT6 (168MHZ, 1Mbyte FLASH) GYRO Sensor: BMI270 (SPI connection) Mount hole size: 25.5mm*25.5mm Power supply: 1-2S battery input (DC 2.9V-8.7V) Built-in 12A(each) Blheli_S 4in1 ESC Built-in Serial ExpressLRS 2.4GBuilt-in BMP280 BarometerBuilt-in 8MBp blackbox Built-in voltage meter sensor , voltage meter scale 110 Built-in current meter sensor , current meter scale 470 |
| Onboard 4in1 ESC | Power supply: 1-2S LiPo/LiPo HV Current: 12A continuous peak 15A (3 seconds) Support BLHeli_S Bluejay firmware Factory firmware: Bluejay ESC V0.19Firmware target: Z-H-30 Default protocol: DSHOT300 |
| Onboard UART ExpressLRS 2.4GHz Receiver | Packet Rate option: 25Hz/50Hz/150Hz/250Hz/500Hz RF Frequency: 2.4GHz Antenna: enameled copper wire 31mm length Telemetry output Power: <12dBm Default firmware version: ExpressLRS V3.0.1 Firmware target: HappyModel EP 2400 RX Could update firmware via ExpressLRS configurator |
| DJI O4 Air Unit | Weight: Air Unit (camera module included): Approx. 8.2 g Transmission Module: 30×30×6 mm (L×W×H) Camera Module: 13.44×12.36×16.50 mm (L×W×H) Camera Cable Length: 50mm Coaxial Cable: 50 mm 3-in-1 Cable: 50 mm Operating Frequency: 5.170-5.250 GHz 5.725-5.850 GHz Operating frequency varies by region. Refer to local regulations. Transmitter Power (EIRP): 5.1 GHz: <23 dBm (CE) 5.8 GHz: <30 dBm (FCC) <14 dBm (CE) <30 dBm (SRRC) Live View Quality: 1080p at 30/50/60/100fps |
| FOV Extender for O4 Camera | Weight: only 3.2gram Built-in widening lens FOV angle up to 150 degree 3d printed Camera holder Include UV filter, ND8 filter, ND16 filter |
***If you want to use DJI FPV Remote controller, Please first reflash betaflight firmware add add “SBUS” protocol support when load firmware online. And then please import defaulct factor dump file to CLI command , then change betaflight settings like following picture,no need do any hardware modification to the flight controller:
Default factory Mobula8 O4 dump file for Betaflight 4.5.1
Package includes:
| Item Name | Qty |
| Happymodel Mobula8 Frame | 1 |
| CrazyF405HD ELRS flight controller firmware target:BETAFLIGHTF4 | 1 |
| EX1103 KV11000 brushless motor | 4 |
| Gemfan Hurricane 2023 tri-blade propellers(4cw+4ccw) | 1 |
| DJI O4 Air unit | 1 |
| FOV Extender for O4 camera | 1 |
| Angle-adjustable Canopy | 1 |
| Screw driver | 1 |
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
4.4 ★★★★★
Based on 2373 reviews
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Product Reviews
★★★★★ 3
Pretty Good But Not Perfect!
Size: 28'' X 34''
I have been using two of these frames for my miniature poodle puppy for almost a month now and while they are useful, they could be improved. The size of the frames are great for our miniature size poodle puppy and the Amazon pads that fit the frames absorb well without leaking underneath. The grips on the bottom of the frame keep it in place so it does not slide across floor. The frame hinges in the center so you can easily carry it through doorways. I am in my 60's so it is nice to be able to carry it to my work table in order to change pads while standing up.
My 4 month old 10 pound puppy can make a dinner plate size circle of pee onto the pad first thing in the morning. 4 large pees are easily held by the pee pads before needing to change it but we prefer to change the pads more often for sanitary reasons. Not sure if you have a very large breed dog that these would work for you. Our puppy likes going on these without hesitation so they are comfortable for him to walk around on and turn to find just the right spot!
Compared to other brands I have looked at this is a great value for money and worth a try to help with potty training your pup. Our puppy sleeps in an X-pen inside of our home at night and when we are gone so these help with keeping the pads where we want them. We have two - one inside X-pen and one by door where we are training puppy to go outside.
These frames are nice in appearance and seem like they will last but they are a little awkward to use compared to another brand I purchased which was more durable and easier to change pad. I ended up with these because other brands do not offer such a large size (28 x 34).
Our main complaints about these frames are:
1. The top frame is hinged and a little wobbly to manuever over the edges of the pee pads. Another brand, while a bit smaller, has a solid one piece frame that goes over entire pad in one step. This frame requires a three step process of laying pad down, pulling edges out flat and placing one side of frame down and then repeating on other side. There is usually a bit of adjustment that needs to be done and so requires opening and closing the frame again for adjustments.
2. The Amazon pee pads that fit this frame hold the pee well without leaking but have very thin tissue paper like edges (blue) that do not extend out far enough to make capturing the edges of the pee pad under the frame very easy to maneuver. It would be a game changer if the pads were made at least 1" bigger around length and width so edges are firmly held in place.
3. Our tiny 10 pound poodle pup is able to easily dig out edges of pad and tear it up. Not as bad as a loose pad by any means, but blue edges are exposed at side centers where frame hinges and there is no cover of edges (unlike a one piece frame) and the blue color seems to attract him. He can dig and loosen pad on any side because there is no way to hide and hold down all of the blue edges of pee pad.
I am still using these to potty train and, as I said earlier, these are way better than loose pee pads. I may shop for even larger size pee pads in the future to better lock down all of the edges without so much difficulty.
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Reviewed in the United States on May 5, 2026
★★★★★ 4
Good product for dog training.
Size: 22'' X 22''
Work for the most part. Dogs will chew on it so wipe it down with dawn dish soap. Hard to clean where it clips down.
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Reviewed in the United States on March 13, 2026
★★★★★ 5
Saving My Floors
Size: 28'' X 34'', Size: 28'' X 34''
Omg, what a game changer. My pups like to destroy the pads whenever they get the chance to. With this they still try but never succeed. I will say that it can be a little sturdier as the handles are a little flimsy, but I manage and it does the job. It's very easy to use when I change the pads and I use 2 pads for coverage. I just placed it where I usually place their pads and it fits right in the spot. They are trained to go outside but on rainy days this comes in handy. To save my floors it's definitely worth the money spent.
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Picky dog approved!
Color: S6-muti-color, Color: S6-muti-color
I have wasted so much money on dog balls that they won't even pick up! They finally were obsessed with the Kong rubber green/blue or red/blue ones, but they're $3+. each, and they break from the dogs squishing it. I honestly had zero expectations on these, and they BOTH picked them up on the first throw! That's huge!!
Seem to work fine in the ChuckIt.
As for the squeaker, at first I was like "Oh nooooo." when they both loudly started! Much to my (and my neighbors') happiness, the squeakers stopped working after a couple minutes. 🤣
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Reviewed in the United States on February 2, 2025
★★★★★ 5
Great dog toys
Color: S6-muti-color
These are long lasting, durable dog toys. My dogs love the squeak sound.
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Reviewed in the United States on May 23, 2026