Direct orders from our website are $45
Once the product is available through regional distributors, the retail price will be standardized at $61
Spec
Weight
54.2g
Wheel Base
145mm
Frame Type
Sqaushed X
Stack Mounting
20x20mm (M2/M3)
Camera Size
Nano/Micro/DJI (14/19/20mm)
Motor Mounting
9x9mm / 12x12mm (M2)
Vtx Mounting
20x20 / 25.5x25.5
Support Prop
Max 3.1inch
Standoff Height
20/25mm
Screw Material
YFS 12.9 Class
Standoff / PS-3 Material
7075 Alloy
What's in the box
Carbon Fiber
Top Plate 2mm x1
Front Plate 2mm x1
Rear Plate 2mm x1
Lock Plate 2mm x1
Arm 3mm x4
Cam Plate 2mm x2
Hardware
M2x3 Socket Head -4/pcs
M2x5 Button Head -16/pcs
M2x6 Socket Head -8/pcs
M2x22 Countersunk -4/pcs
M3x6 Button Head -2/pcs
M3x6 Countersunk -2/pcs
M3x8 Button Head -4/pcs
M3x12 Countersunk -4/pcs
M2x20 7075 Standoff - 2/pcs
M2x25 7075 Standoff - 2/pcs
M3x20 7075 Standoff - 4/pcs
Accessories
Capacitor Mount x1
Antenna Mount x1
TPU M2 Nuts x4
Rubycon 35v470uF ZLH x1
Damping Tube x1
Battery Pad x1
Battery Strap x1
Backup Screw Pack x1
Add on Accessories
Related Videos
Shipping Information
United States & Canada
ePacket : $10
DHL Express : $30
Europe
ePacket : $10
DHL Express : $30
Australia & New Zealand
ePacket : $10
DHL Express : $30
Other Countries
ePacket : $15
DHL Express : $30
Shipping Methods
ePacket — Economy tracked shipping.
DHL Express — Fast express delivery with full tracking.
Notes
Select DHL Express for the fastest delivery. One free extra spare arm is included with each frame.
Shipping methods available may vary by destination.
If DHL Express is unavailable for your destination, we may use EMS instead.
All packages are shipped from Taiwan.
For full shipping terms and details, please see our Shipping Policy .
Siren F3 Split is a 3" freestyle frame that focuses on a lightweight and compatibility body. It has a better thrust-to-weight ratio, making the thrust response more agile during intense flight and cinematic shots.
At the initial design, we considered putting the structure of a 5” frame into a 3” body. Keeping the design of interchangeable arms and the sufficient space for equipment installation, Siren F3 Split fly much like a 5” frame but lighter and smaller.
In the meantime, we use the C-Lock structure which is our most advanced design. You can easily replace the arm by removing only one bolt. It also increases the strength of the frame and makes it easier to tune(Less filter, higher PID).
In addition, with QUADMULA PS-2 and PS-3 profiled spacer, the 3D prints TPU can be fixed more firmly on the plate. you no longer have to worry about the tightness of screws or crushing the TPU.
SF3 Split uses a staggered bottom plate design which results in a lower center of gravity, but also requires higher assembly skills.
This thing flys so good!!! Quality of frame is better than any other frame I’ve bought. Matched it with T-motor 1604s, Hdzero halo stack and freestyle V2 VTX. Definitely not your sub250 with 6s. I’m sure you can get it with a 4s
Mounting for 20x20, but height is not enough by 2mm for anything properly to fit. If use AIO then need to print mounting plate - could be included as an option for different mounting possibilities. Between stack and vtx allso couple mm too little space: for power cables + capacitor. ELRS module only nano fits, proper size ELRS module can fit only outisde of the frame. Most builds on this frame have power cables facing forward due to space issues, but then O3 unit camera have issue to fit.
Good side: very sturdy frame, flight is very smooth. Frame it self of very high quality: smooth corners and all components included. Simply few mm size could be added on 3.5'' build, but only legs are prolonged there. Good quality, but already looking for different frame - just because of space super limitations. DJIN setup could be addapted to 3 or 3.5 .
Love the frame! Came from a FlyFish 3 and 3.5” Volador. Two totally different frames! I was lucky enough to purchase 2. The other will have an 03 in it and 3800kv motors. This one I dropped an 04 lite in it!! This thing rips!!!
If you are here reading reviews, do yourself a favour and buy at least one. You won't regret it.
Beautifully made, a pleasure to build and even better to fly.
I really love these Quadmula frames.
I've had plenty of hard crashes on hard surfaces and only broken props and nd filters so far.
The frames can take a proper beating.
Excellent customer service, well packaged and organised, fast shipping.
I will definitely be buying more.
"First-time drone build, and wow—what a ride! 🚀 This little beast has been through some serious crash and burn moments, yet all I’ve had to replace are the props. Talk about tough! 💪
A quick tip: purchase some extra M2 hardware—it’s surprisingly hard to find at local stores. I built mine using inspiration from various YouTube builds, and here’s my setup:
Flight Controller: Speedybee F405 AIO (with adapter plate)
Motors: T-Motor 1604
Camera: DJI O3
Props: HQ T3
Receiver: Happymodel ELRS EP1
Battery: 6S
GPS: HGLRC M100 mini
Mounting the flight controller took some creativity, but I made it work by using the hardware that came with the T-Motors to secure the adapter plate to the quad’s mounts—then mounted the FC to the plate.
If you're thinking about building one yourself—go for it! It’s been a blast, and this drone can take a hit and keep flying! 🛸🔥"
Such a fun and easy build the frame is so thought out to make everything easier I followed murdersfpv build video,
This thing rips and it’s my daily driver, I’m save for my f5split build as we speak 😎
After all the 5"freestyle and racing. 2" toothpicks, the 65,75,and 85mm whoops. This will put a grin on your face, you cannot wipe off! Assembly was a joy.
Very good service fast shipping the qualiter c grasse a youtube jai decouver quadmula au top lacher pas vous fait la belle job suvis incroiyable merci quamula
Motor peacer p1604 2850kv 6s camera analog foxeer predator v5 esc40a jhemcu flight controler f722 jhmcu vtx speedybee 800 anntene foxeer llolipop elrs radiomaster rp1 v2 hqprop t3x2x3 xt60 tpu camera runcam thumb-pro
The build went well, everything fits perfectly and the design looks great.
Due to the weather I could only do a quick maiden flight , it flew great and can’t wait for the weather get better to really try it out.
Awesome little Quad. i managed to do a Sub250 HDZero 6S build (249,7g) with Tmotor 1604 motors and Gaoneng 530mAh 6S LiHV. Even got the full range antenna installed and able to use the bigger 5g strap with this build. Swapped motor screws with titanium ones to save wheight but overall really happy how it turned out and surely going to order the 3.5 inch frame too and see if i can build another sub250 to compare those too. This frame and build is so quiet compared to my 5inch, that its an awesome park cruiser and noone is getting bothered.
Amazing Frame! Great design and build quality which also gives great performance. Flying on 6s feels like a 5" quad and yet has the benefit and some favoured flight characteristics of a 3" quad.
However, the hardware (including spare parts) isn't very well thought through. VTX stack screws weren't included and the SMA holder doesn't even come close to fitting the slimmest SMA I have when connected, ended up having to print my own. Which ultimately made the build process a bit tougher and less satisfying. If additional photos/information describing the optional parts and dimensions(very important for 3D printed parts) are provided, it would be impeccable!
Love this sub 250g build! (No RID for me!)
Flies very similar to my F5 build, and paired with the O3 is near perfect for most situations. Build is solid, and can take a hit. This is my favorite quad to fly for fun. Im getting about 3 minutes of hard flying with a 550mah 6s battery.
Only complaint is props in view on the O3. Hopefully there will be a Djinnn version come out.
The QUADMULA Siren F3 Split is a game-changer in the world of drones. Its sleek design, exceptional agility, and durability redefine high-performance flying. Easy customization, robust construction, and outstanding customer support make it a top choice for enthusiasts and professionals, from the package and unboxing experience on the ground and the amazing flight characteristics on the air it’s just a masterpiece:
Elevate your drone experience with the QUADMULA Siren F3 Split!
Greetings,
My name is Allen Mitchell, and I am a freestyle FPV pilot, as well as a videographer. I have been flying and creating for several years now, and have always enjoyed creating content. Either through photography or video. I recently heard of your frames and decided to purchase the Siren F3 Split and I am excited to begin to create content with this frame. I have never been sponsored by any company, and decided to reach out to you and see if there is an opportunity to do so with your company. Below I have attached my channel and photography portfolio for consideration. I look forward to speaking more with you on this topic.
Thank you for your time and consideration.
Allen Mitchell
https://www.youtube.com/channel/UCOeq266Iv70q3Z0CGRBgkaw
https://youpic.com/AllenMitchell/
Size definitely doesn’t matter in this case. This thing rips so well, I love it. This little 3” quad has all the flight characteristics of a 5” but in a smaller package. Powered with a 6S battery it has some serious power for a little quad and it handles it beautifully and I managed to get it below the 250g goal. The build quality is second to none, I was pleasantly surprised and can’t wait to build more Quadmula products very soon
This quad is amazing.
Maiden flight was done on stock tune and this was already amazing.
Great build quality, super solid and incredible strong.
I love it already, made me proud to finalize the build and now need to tune a bit.
For sure this will not be my last Quadmula Frame 👍🏼
The best sub250 freestyle 3inch DJI o3 so far. I tried BF&kiss G4, they all works great. Compare with 5inch and 4 inch, less power less time. I have to say it feels close to 3s/fettec gravity 1 but less time, but you have the oled DJI o3.