Megaphone(M300&M350)

Product Name: Airborne Digital Voice Broadcasting System

Product model: AF-3S

Load interface: SkyPort V2.0

Product size: 173.5mm * 143mm * 90mm (± 1mm)

Product weight: 470 ± 5g

Maximum sound pressure: 130dba

Maximum power: 50W

Effective broadcasting distance: 500 meters

Maximum broadcasting distance: 800 meters

Working temperature:- 20℃-45℃

Communication link: DJI drone link

Control distance: Consistent with the communication distance of the drone

Pitch angle: 0-90 °

Shouting method: Real time shouting, sound recording, Audio file playback, TTS text to speech (supports loop playback), alert

Audio format: Mp3/Wav/Flac/AAC/Wma

Compatible models: DJI M300/M350

Founded in 2018, Airfly Tethered is a national high-tech enterprise specializing in the research, development, and manufacturing of tethered UAV power systems. As one of Jiangsu Province’s leading intelligent manufacturing companies, Airfly is dedicated to advancing tethered technologies that enable safe, efficient, and continuous drone operations.

Based in Nanjing, China, Airfly collaborates with domestic and international partners to provide high-quality, high-performance tethered modules and power stations for UAV applications worldwide.
Our flagship products include the A4, WF4, and FW6 airborne power modules (6kW, compatible with 750V ground stations), and the G4 and G7 ground tether power stations (7kW / 750V)—widely recognized as reliable, market-proven solutions.

Driven by the philosophy of “Technology Empowers, Innovation Leads,” Airfly partners with renowned universities such as Nanjing University, Southeast University, and NUIST, forming a strong R&D team with cutting-edge expertise. We not only deliver industry-leading standard products but also provide customized non-standard tethered solutions to meet clients’ specialized needs.

Airfly Tethered serves over 600 domestic and 80 international clients, with exports to the U.S., Europe, the Middle East, South Africa, and Southeast Asia. Our tethered systems play critical roles in power inspection, communications, monitoring, emergency response, firefighting, and security.

Looking ahead, Airfly will continue to expand the boundaries of tethered UAV applications, creating greater value for customers worldwide and powering the future of intelligent aerial operations.

Original Innovation — Confident Tethering Since 2013

Phone: +86 19952400441 / +86 199 5178 6845

WhatsApp: +86 199 5240 0441

Email: susy@tetheredsystem.com / evan@tetheredsystem.com

Address: Room 1813, Building C, No. 88 Pubin Road, Pukou District, Nanjing, China

Website: www.tetheredsystem.com

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