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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
4.7 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
"Nothing works like a Timex!"
Color: Black/Brown/White
"Nothing works like a Timex!" So true!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 4, 2026
★★★★★ 1
Second watch died faster than the first!
Color: Black/Brown/White
Now I have bought two of these. On the first, indiglo died after one year (battery otherwise fine). On the second, it only lasted 9 months. I’m done. On the first, suspecting the battery was prematurely drained, I took it to the jeweler to get a new battery. He said there was nothing wrong with the battery.
I was within the warranty period for the second watch. When I inquired, I was told that it meant shipping the watch overseas for about 3 months to be fixed. Wow. So in reality, it's a disposable item that is not likely to work as long as warranted, much less several years.
Time to find another brand.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
★★★★★ 5
An excellent replacement for the old camper watch
Color: Black/Black/Black
I wore Timex camer watches for much of my adult life. I prefer the analog wind-up versions, but they are not widely available at a reasonable price. I purchased this model for its large easy to read face and durable strap. The Indiglo feature is a bonus.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
★★★★★ 5
Favorite watch / solar
Color: Green/Green
I'm partial... I have bought Timex my intire life, they no doubt make the best watches... They take a licking, but keep on ticking is there old commercials.. True.. Great quality, keeps going after many year's... I never bought a solar watch from them prior I have to mention... It should hold up I'm thinking like their battery watches, I hope so. My favorite watch, I own a handful. Watch looks better in person... Downfall, they are trying a new band out of recycled plastic, I don't like it as much as the older bands it's soft, but feels a little strange...
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Reviewed in the United States on March 28, 2026
★★★★★ 5
Great watch
Color: Blue/Blue
Awesome solar watch. Nice not having to bother with batteries
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
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