Dronebuster

Maker	Flex Force Enterprises (now DZYNE Technologies, part of Ondas)
Origin	United States
Built	Portland, Oregon, USA
Length	0.55 m
Weight	2.6 kg
Max range	1.4 km
Guidance	Onboard RF detection, Remote ID and AeroScope decoding, RF direction finding; operator aims line of sight
Bands	Commercial ISM drone bands (433 MHz US or 868 MHz EU variant among them; full list restricted) plus GPS, GLONASS, Galileo and BeiDou
Endurance	DB4: 60+ min jamming, 10+ h detection; earlier models 3 h jamming
Mount	handheld (fixed-site mounting points)

The 0.8 to 1.4 km figure is the maker's range for GNSS spoofing; for jamming the maker gives no fixed range, describing it as about three times the drone-to-controller distance. DZYNE claims 3,000+ units in 50+ countries; Defence Blog cites 1,700+. Approved by the US Joint Counter-UAS Office for handheld electronic attack. No confirmed combat engagement found.

Sources (11)

1. Dronebuster DB4 (DZYNE, maker page) (length_m)
2. Dronebuster DB4 (DZYNE, maker page) (weight_kg)
3. Dronebuster DB4 (DZYNE, maker page) (endurance)
4. Dronebuster DB4 (DZYNE, maker page) (guidance_or_cueing)
5. U.S. Air Force to buy 60 DroneBuster counter-drone systems (Defence Blog, 8 Sep 2026) (frequency_bands)
6. U.S. Air Force to buy 60 DroneBuster counter-drone systems (Defence Blog, 8 Sep 2026) (range_km)
7. U.S. Air Force to buy 60 DroneBuster counter-drone systems (Defence Blog, 8 Sep 2026) (built_where)
8. Ukraine War Shows the Need for Counter-UAS Systems Such as Flex Force's Dronebuster (Asian Military Review, 25 Sep 2023) (range_km)
9. Marines in Training with Dronebuster Counter-UAS Tactical Weapons (Inside Unmanned Systems, 2 Jun 2021) (range_km)
10. Marines in Training with Dronebuster Counter-UAS Tactical Weapons (Inside Unmanned Systems, 2 Jun 2021) (frequency_bands)
11. Flexforce Dronebuster (MilitaryFactory) (notes)