The LiteRadio 4 radio transmitter redefines the entry-level radio transmitter, offering professional 10-channel operation in an ultra-portable package perfect for new pilots. With two new dedicated trim switches for instant mid-flight adjustments, it provides crisp control, whether you're flying drones, mastering a soccer drone, a robot, or a fixed-wing. Its advanced coated gimbals offer silky-smooth and durable operation, paired with wireless Bluetooth modes for seamless simulator training on PCs, tablets, and mobile devices. Built for endurance, the 1S 2000 mAh battery powers over 8 hours (at 25 mW) of flight or training and fully recharges in 40 minutes via 15 W fast charging.

From your first simulator sessions to real flight mastery, the LiteRadio 4 combines durable construction with intuitive operation, providing you with professional-grade precision without unnecessary complexity. The perfect launch lever for your radio-controlled journey.

LiteRadio 4 Twilight Limited Edition: Fly with Grace, Command with Confidence

Inspired by the serene tones of the Blue Hour skyline, the LiteRadio 4 Twilight – a limited release of only 1,000 units – combines art and engineering in a soft gray-blue finish that evokes calm and focus. This edition elevates performance with Hall Gimbals, offering professional-level precision for unparalleled smoothness, fluid control, and exceptional durability. Retaining all the features of the standard version – 10-channel customization, 5D trim adjustments, Bluetooth simulator connectivity, and a 1S 2000mAh battery, the Twilight edition encapsulates uncompromising capability in an exclusive design. Whether navigating complex FPV routes or executing delicate maneuvers, the LiteRadio 4 Twilight ensures every input feels effortless and every moment in the air remains smooth in control.

• 
  

Features

• Ergonomic Portability: The lightweight design offers all-day comfort for training or travel.

• 10-Channel Customization: Two new tactile switches expand output channels to 10, allowing more flexible controls for drones, robots, soccer drones, and fixed-wing models.

• 5D Trim Adjustments: Two dedicated trim switches allow pilots to effortlessly fine-tune joystick offsets mid-flight for instant balancing.
  

• Advanced Coated Gimbal Sensor: Wear-resistant coating ensures smooth and precise stick movement with enhanced durability.

• Wireless Simulator Ready: Bluetooth joystick mode connects wirelessly to FPV simulators on PC, mobile, or tablet.

• Fast-Charging Battery: The built-in 1S 2000 mAh battery offers over 8 hours of runtime at 25 mW, with 15 W charging in just 40 minutes.
  

• Latest LiteRadio Transmitter: Integrates BETAFPV's advanced radio transmission technology for reliable, low-latency control.

Specifications

• Item: LiteRadio 4 Radio Transmitter
  

• Channel: 10

• Color: Gray (Standard Version), Blue Gray (Twilight Limited Edition)

• Gimbal: Potentiometer (Standard Version), Hall (Twilight Limited Edition)

• RF System: ExpressLRS 2.4G

• RF Output Power: 25mW/50mW/100mW (Adjustable)

• Simulator Connection: Bluetooth and USB cable connection

• Supported Simulator: Most simulators and DJI Virtual Flight

• Port: Type-C port (integrates data transfer and charging)

• Charging Power: 5V, max 3A.

• Battery: Built-in 1S 2000 mAh LiPo

• Endurance: 4-5 hours at 100 mW or maximum 8 hours at 25 mW

• Weight: approx. 210g

• Dimensions: 172.5mm*118.5mm*72.5mm

Diagram

Enhanced Control and Precision at Your Fingertips

The LiteRadio 4 radio transmitter elevates pilot mastery with an advanced coated gimbal sensor, two tactile switches, and trim switches. 10 output channels now offer more advanced customization with responsive and ergonomic handling, while the trim switches provide 4-directional adjustments with a central tap reset capability – allowing for instant in-flight balancing when it matters most. Combined with the advanced coated gimbal sensor, optimized for silky-smooth responsiveness and extended durability, the LiteRadio 4 transforms complex tasks into intuitive actions.

Whether mastering a drone, robot, soccer drone, or fixed-wing, the LiteRadio 4's enhanced functionality ensures pilots have unparalleled responsiveness and adaptability. Every input is crisper, every adjustment effortless.

Train Wirelessly on Any Simulator, Anywhere

The LiteRadio 4 transforms pilot training with its Bluetooth Joystick mode, offering instant wireless connectivity to FPV simulators on PCs, mobile devices, and tablets. Refine your skills in realistic environments: no cables, no worries. Plus, the Xbox mode offers integration with DJI Virtual Flight, providing the most authentic DJI training experience outside of real flight. Perfect your maneuvers in hyper-realistic aerial simulations, bridging the gap between practice and real-world performance.

Start Small, Control Big

The LiteRadio 4 radio transmitter packs professional-grade control into a remarkably compact form. Small enough for your backpack yet powerful enough for competition, its lightweight design doesn't sacrifice durability, making it the perfect companion for practicing at home, in the field, or wherever inspiration strikes.

Fly Longer, Charge Faster

Powered by the built-in 1S 2000mAh LiPo battery, LiteRadio 4 offers 4 to 5 hours of operation at 100mW or a maximum of 8 hours at 25mW, enough for all-day training or competition. When it's time to recharge, the upgraded 15W fast charging gets you back in the air in just 40 minutes.

Evolving Excellence: The LiteRadio Series

From the original LiteRadio 1 to the advanced LiteRadio 4, the BETAFPV  LiteRadio Series  has redefined compact, high-performance radio transmitters. Now, the LiteRadio 4 elevates the series with 10-channel output, dual-trim switches, 15W fast charging, and dual-mode wireless simulator support, making it the most versatile and accurate transmitter in the lineup. Each iteration in the LiteRadio lineage demonstrates BETAFPV's dedication to innovation, delivering increasingly sophisticated performance while retaining the accessible, user-friendly design that made the original so popular.

All Your Favorite FPV Simulators, One Controller

Experience ultimate flexibility with LiteRadio 4, your gateway to popular FPV simulators like VelociDrone, Liftoff, TRYP, Erea Drone, DRL, DCL, DJI, and more. Whether you're on a desktop, Android device, or tablet, LiteRadio 4 ensures seamless compatibility across platforms. With the added Xbox mode, enjoy effortless integration with the DJI flight simulator on the Windows system and elevate your virtual flying experience to new heights.

How can I enable DJI FPV Simulator support on LiteRadio 2 SE, LiteRadio 3, and LiteRadio 4?

How can I enable Android device compatibility on LiteRadio 2 SE, LiteRadio 3, and LiteRadio 4?

BETAFPV Configurator

The BETAFPV Configurator is an open-source configuration tool designed for BETAFPV drones and radio controllers. It allows pilots to effortlessly set up and fine-tune various parameters, ensuring a more efficient and optimized flight control.

The BETAFPV Configurator V2.0.0, officially launched in December 2024, introduces several exciting enhancements:

• Supports macOS and Linux (Debian family) platforms.

• Supports almost all LiteRadio transmitters including LiteRadio 1 (FrSky), LiteRadio 2 SE V2 (FrSky, ELRS2, and ELRS3), LiteRadio 3 (FrSky, ELRS2, and ELRS3), LiteRadio 4 (ELRS3), and LiteRadio 4 SE (ELRS3).

• Resolved various known bugs for enhanced performance.

BETAFPV Configurator Features:

• Easy Parameter Adjustment: Designed for BETAFPV's LiteRadio series and Cetus drones with altitude hold and auto-hover features, the software allows pilots to effortlessly fine-tune PID controller parameters via an intuitive graphical interface, optimizing flight performance with ease.

• Real-time Feedback: Instantly displays the effects of parameter adjustments, providing real-time monitoring and helping pilots quickly evaluate and refine drone or radio controller settings.

• Efficient Troubleshooting: With built-in diagnostic tools, the software aids pilots in checking firmware versions and product status when issues arise, facilitating quick identification and resolution of problems, thus minimizing downtime.

• Simplified Firmware Flashing: Features a user-friendly firmware flashing mechanism for both drones and radio controllers, complete with guided instructions and progress indicators, ensuring smooth and error-free updates.

Note: DO NOT power on the transmitter before connecting it to the PC. Doing so will render the USB port non-functional.

File

• LiteRadio 4 Radio Transmitter Manual

• BETAFPV ELRS V3.0.0 Firmware

Package

• 1 * LiteRadio 4 Radio Transmitter (Twilight Limited Edition)

• 1 * Gimbal Protector

• 1 * User Manual

• 1 * USB Type-C Cable

• 1 * LiteRadio 4 Radio Transmitter (Standard Edition)

• 1 * Gimbal Protector

• 1 * User Manual

• 1 * USB Type-C Cable