SKU: 99871678412

IFlight Defender25 O3 HD 2.5inch Cinewhoop Quadcopter with O3 Air Unit

$179.55 $199.50
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

IFlight Defender25 O3 HD 2.5inch Cinewhoop Quadcopter with O3 Air UnitDescriptions After 2 years with the very successful ProTek series, iFlight continues to strive for a better flying experience and performance with the next upcoming innovative step. Let's meet the Defender25. Highlights Ultralight & Free to Fly At sub 249g weight, our Defender25 doesn't require registration in most countries. The compact and lightweight design also makes it easy to carry and store. It will be your best travel buddy to redefine your


 

Descriptions

After 2 years with the very successful ProTek series, iFlight continues to strive for a better flying experience and performance with the next upcoming innovative step. Let's meet the Defender25. 

Highlights

Ultralight & Free to Fly

At sub 249g weight, our Defender25 doesn't require registration in most countries. The compact and lightweight design also makes it easy to carry and store. It will be your best travel buddy to redefine your FPV adventure.

Small But Mighty

The built-in 2.5inch propeller guards were designed to fly bold. You'll experience a complete new creative freedom to fly whenever and wherever. The durable injection molded frame does not only prevent damage to your motors or propellers, but also protects the environment of small flight errors.

4K Stabilized Video with 155°Ultra-Wide Angle

Equipped with the latest tech from DJI, the O3 Air Unit HD transmission system. The Defender25 supports 4K video and shoots up to 155°super-wide FOV footage for stunning visuals. In addition, D-Cinelike color mode provides more creative freedom for color grading, allowing you to edit and adjust your footage. (Source DJI)

We've also added a special vibration-damped camera mount to keep your raw footage as smooth as possible, as well as ensure good Gyro Data for the in-built or in-post camera stabilization.

Crash Protected Quick-Release Battery

New innovative quick-release battery and charging adapter to make everything as easy as it can be. The Defender25 comes with a stock 4S 550mAh. An Endurance 900mAh battery is optional.

Inbuilt high-performance Video and Receiver antennas

Optimized Landing Gear for Take-off in Complex Environment

Countless easy-to-use features let you get started right away: 

1) Turtle Mode pre-setup

2) Secured XT30 Battery Plug with Anti-Spark Filter

3) Motors with direction arrows

4) Props with positioning column for easy installation

5) All ports and buttons are easy to access

6) Mini camera mount (Naked GoPro, Insta360, etc.)

Specifications

Product Name: Defender25 O3 4S HD

Flight Electronics: BLITZ D25 F7 AIO

Video Transmission: O3 Air Unit

Frame: 112±2mm

Motor: Defender25 1404

Prop: Defender25 2525 props (2.5 inch)

Weight of the Aircraft: 180g

Takeoff Weight incl. 550mAh battery: ≤249g

Takeoff Weight incl. 900mAh battery: ≤280g

Dimensions (L×W×H):158x155x69mm

Max Ascent Speed: 6 m/s (Normal Mode, Sport Mode)

Max Descent Speed: 6 m/s (Normal Mode, Sport Mode)

Max Speed: 100Km/H (Manual Mode)

Maximum Takeoff Altitude: 200 m

Max Hover Time: Approx. 6 mins(with 550mAh battery), 10mins(with 900mAh battery)

Max Flight Distance: 2-3 km

Max Wind Speed Resistance: 80 Km/H (Level 5)

Operating Temperature Range: -10° to 40° C (14° to 104° F)

Transmission Power (EIRP): FCC: < 33 dBm / CE: < 14 dBm / SRRC: < 30 dBm

Antennas: Dual Antennas

GNSS: N/A

Video Transmission

Product Name: DJI O3 Air Unit

Weight: Approx.  36.4grams

Dimensions (L×W×H): L16.7 * W103.9 * H 81.3mm

Screen Size (single screen): 0.49-inch

Resolution (single screen): 1920×1080

Refresh Rate: Up to 100 Hz

Interpupillary Distance Range: 56-72 mm

Diopter Adjustment Range: -8.0 D to +2.0 D

FOV (single screen): 51°

Communication Frequency: 2.400-2.4835 GHz;5.725-5.850 GHz

Transmission Power (EIRP): 

2.4 GHz: < 30 dBm (FCC), < 20 dBm (CE/SRRC/KC)

5.8 GHz [4]: < 30 dBm (FCC), < 23 dBm (SRRC), < 14 dBm (CE/KC)

Max Video Transmission Bitrate : 50 Mbps

Operating Temperature Range: 0° to 40° C (32° to 104° F)

Power Input: 7-9 V (1.5 A)

Packing List

1 x Defender25 O3 HD BNF

1 x Defender25 550mAh Battery

1 x Charging Adapter Board

2 x Defender 2525 Props (pairs)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 99871678412

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4.1 ★★★★★
Based on 8 reviews
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Product Reviews
R
Verified Purchase
R. Martin
Dallas, US
★★★★★ 5
Easy to use. Stays sealed. Stays charged.
Size: 12 Combo Travel Size
I had previously bought packing bags in a store — the kind the you had to seal and then roll/squish the air out of one end of the bag. It really took 2 people to remove most of the air. I took them to Mexico, and they were just OK. I switched to these vacuum bags before our family ski trip. What a great purchase! This set includes multiple sizes, which worked well for both everyday clothes and bulkier cold-weather gear. They also fit well inside different size suitcases. One tip: Fill the bag, seal it shut, squish some air out, but then suck the final air out with the bag already inside your suitcase. You can "massage" the clothes and guide how the bag flattens out for a really efficient use of your suitcase space. The organization you can achieve is really impressive. The bag material and valve is tough enough to not allow any air leaks. The red "glides" they provide make sure the seal is solid and easy to achieve. And the system is simple enough that I suspect that elementary kids or people with lower dexterity could operate it (my teens certainly had no issues packing themselves). After returning home, I folded all the bag along their original fold lines, charged up the "sucky thing" (which still held 75% of it's charge after being used at least 20 times), and tucked it all neatly in our travel drawer, ready for our international trip next month. Great value. High quality. I'd even go so far as to say they're fun to use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 27, 2026
G
Verified Purchase
Gail
Boise, US
★★★★★ 5
Travel bags
Size: 12 Combo Travel Size
Perfect packing bags. I’m using them for a trip to Alaska. The pump works easily . I tested them out and the air retention is perfect.? They are not too thick and will not take up space. The material seems like it will hold up without ripping. I will be using them often. They come in different sizes which work perfectly with different items.
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Reviewed in the United States on May 24, 2026
E
Verified Purchase
Eric Hansen
Lexington, US
★★★★★ 5
These are a travel must!
Size: 15 Combo Travel Size
We recently took a trip to Japan and South Korea with our 3 kids, and needed to bring all their clothes for 2 weeks, with as few suitcases as possible. These bags were a life saver! We were able to fit so much more stuff in our suitcases with these bags. I don’t know how we would have brought everything without them. We would have had to bring at least one, probably two suitcases more. Easy to use - the vacuum is compact so you can bring it with you, but super powerful and works quickly. Remember to charge it after you use it for when you pack back up. But, you can manually push out the air as well if you’re in a pinch.
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Reviewed in the United States on May 4, 2026
C
Verified Purchase
Cameron Byers
Massapequa, US
★★★★★ 4
More pros than cons, very convenient, but durability is an issue.
Size: 15 Combo Travel Size
Pros: I think that this is a good product. I've had it for several weeks and travel every week for work. It's a good design and the vacuum pump is ergonomic and reliable, in my experience. Charges relatively quickly at home and I'm not sure how long the charge lasts, because it's convenient with a USB-C port, so I charged whenever the charge got to 3 bars. My experience is that dress shirts maintain the pressing if folded and packed neatly. They're creased, but hang them in the hotel bathroom and the steam from a shower loosens the wrinkles nicely. Cons: durability. The bags are pretty thin and after 3 or 4 trips the seal in the bag(s) can become compromised. I suspect the leaks are tiny and in the actual bag vs. the seal. With regular use, this was in only two of the fifteen bags. The double zip lock is really durable. FOR CAMPING: they were great for motorcycle camping, however the durability became an issue. I was camping along a lake and took some care with the bags, but admittedly was a little harder on them than I could have been. I took extra bags just in case, and am glad I did. Three of the 6 bags I took slowly lost the vacuum. If you're using them for camping, pack extras. They're inexpensive enough to continue to buy replacements periodically and you do get a lot. TIPS: pack the vacuum in the suitcase with the bags. Pack the bags with a complete outfit for each day. The temptation is to pack shirts in one bag, socks/underwear in the other, etc. It's more difficult to repack dirty clothes that way, but if you have each day in its own bag you just use each one for a dirty laundry bag.
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Reviewed in the United States on May 19, 2026
K
Verified Purchase
Katie
Pawtucket, US
★★★★★ 5
Over packer approved! GOODBYE checked bag fees!!
Size: 9 Combo Travel Size
These were incredible for our recent flight to Tampa. I’m an overpacker by nature, and we normally have to check at least one bag, but these completely changed that. We were able to fit everything into our carry-ons and backpacks with room to spare, which even saved us from paying a checked bag fee. The vacuum came already charged, and I still haven’t needed to recharge it, which was a nice bonus. It also comes with a small travel bag to keep the charging cord together, which made it easy to stay organized. The suction is strong and works quickly. I packed one bag completely full and it compressed it down to about half the size. The bags are durable and easy to seal, even without using the plastic zipper clips. As long as they’re fully sealed, they stay compressed and don’t slowly let air back in. We unpacked everything at the hotel and stored the empty bags in our suitcases, then reused them to pack for the trip home with no issues. The vacuum isn’t silent, but it’s not overly loud either. I’d compare it to being quieter than a typical hair dryer. This is such a game changer for travel and saving space. I’ll definitely be using these for every trip.
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Reviewed in the United States on May 5, 2026

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