ETRONIX PULSE EX4S 4CH 2.4GHZ FHSS STICK RADIO SYSTEM ET1109

Overview

The Etronix Pulse EX4S 4-channel 2.4GHz FHSS stick radio system is an excellent choice for anyone looking to get started with RC cars in the UK or expand their collection with an affordable, user-friendly control system. This straightforward radio gear pairs the EX4S transmitter with the ET1166 receiver, delivering practical functions that make it ideal for basic surface models including RC buggies, trucks and other entry-level vehicles. Whether you're a complete beginner discovering the world of RC for the first time or an experienced hobbyist looking for a no-nonsense control solution, the Pulse EX4S offers genuine value and reliability at a competitive price point.

The Etronix Pulse EX4S stands out as a sensible, budget-conscious option in the crowded RC radio market. Modern 2.4GHz spread spectrum technology ensures interference-free operation, whilst the stick format transmitter provides intuitive control that most users find immediately comfortable. With a 200-metre surface range, this ready-to-use RC radio system gives you plenty of space to run your model without signal loss or dropouts. The combination of digital trim adjustments, dual rate steering and throttle control, servo reversing, and a built-in failsafe function means you have all the essential tools needed to fine-tune your driving experience and keep your model safe.

Designed with convenience in mind, the EX4S features a charging jack port and plug-in battery box, eliminating the need for complicated battery management or external chargers. This makes the Etronix Pulse EX4S one of the most accessible 4-channel RC radio systems available for UK buyers who want to start racing, bashing or practising without unnecessary complexity.

Key Features

• 4-Channel Control — Four channels of control give you the flexibility to operate steering, throttle, and two additional functions via the 3-position toggle switches, making this system suitable for a wide variety of basic surface models and RC vehicles.
• 2.4GHz FHSS Spread Spectrum Technology — The frequency-hopping spread spectrum mode operates on the modern 2.4GHz frequency band, eliminating interference issues common with older 27MHz and 40MHz systems and ensuring rock-solid, interference-free signal transmission every time you drive.
• Stick Transmitter Format — The traditional stick format layout is intuitive and comfortable for most users, with dual sticks controlling steering and throttle in a configuration that feels natural and responsive during extended driving sessions.
• Digital Steering Trim Adjustment — Fine-tune your vehicle's straight-line performance with precise digital trim adjustments for the steering channel, allowing you to dial in perfect tracking without mechanical adjustments.
• Digital Throttle Trim Adjustment — Match the throttle response to your driving style and model characteristics using digital throttle trim, giving you full control over acceleration and speed management.
• Steering Dual Rate (D/R) Adjustment — Switch between two pre-programmed steering sensitivity levels, allowing you to use gentle, smooth steering for cruising and maximum steering throw for aggressive cornering and racing.
• Throttle Dual Rate (D/R) Adjustment — Two throttle sensitivity settings let you switch between controlled, manageable acceleration for learning and full-power driving for experienced pilots who want maximum performance.
• 3-Channel Toggle Switch — A dedicated 3-position toggle switch on the transmitter controls your third channel function, such as light systems, weapon systems on battle tanks, or auxiliary accessories.
• 4-Channel 3-Position Toggle Switch — The fourth channel features a 3-position toggle switch, offering three discrete settings for functions like transmission selection, special effects, or multi-position servo control.
• Servo Reversing Function — Reverse the direction of any servo from the transmitter menu, eliminating the need to physically reverse servo connections or spend time making mechanical adjustments before driving.
• Built-In Failsafe Function — Safety is paramount: the failsafe function automatically cuts throttle and returns steering to centre if signal is lost, preventing your model from running away or crashing into obstacles.
• Charging Jack Port — The integrated charging port allows you to charge the transmitter battery directly without removing the battery box, saving time and simplifying the charging workflow.
• Plug-In Battery Box — The removable battery box design offers convenience and flexibility, letting you swap in fresh batteries or charged packs quickly without disassembling the transmitter.
• 200-Metre Surface Range — Enjoy a substantial operating range of 200 metres on the ground, giving you plenty of distance to explore, race and practice your RC driving skills without losing signal.
• ET1166 Receiver Included — The system ships complete with the ET1166 2.4GHz FHSS receiver, which is compact (31mm x 20mm x 13mm) and fits easily into virtually any RC car, truck or surface model.

Technical Performance

The Etronix Pulse EX4S is engineered for straightforward, reliable operation across a range of RC surface models. The 2.4GHz frequency band utilised by this system is the modern standard for RC radio gear, offering superior interference immunity compared to older analogue systems. Spread spectrum FHSS (Frequency Hopping Spread Spectrum) technology constantly shifts the operating frequency across a range of channels, making it virtually impossible for radio signals to interfere with your vehicle's control, even in areas with heavy wireless activity or multiple RC systems operating simultaneously. The stick transmitter is ergonomically designed with dual proportional joysticks, offering smooth, progressive control over steering and throttle that translates directly into smooth vehicle movement. Digital trim and dual-rate adjustments are all controlled via the transmitter interface, allowing real-time tuning without any external tools. The included ET1166 receiver is compact and lightweight, measuring just 31mm in length, 20mm in width, and 13mm in height, making it suitable for installation in vehicles where space is limited. The 200-metre surface range ensures you can drive your model across large open areas, skate parks, racing circuits and beaches without experiencing signal dropout or control loss. Build quality is solid and straightforward, with all the essential features needed for safe, enjoyable RC operation without unnecessary complexity or cost.

What's in the Box

• EX4S 4-Channel Stick Transmitter
• ET1166 2.4GHz FHSS Receiver

What You Need to Complete

• 4 x AA Batteries (for transmitter power)

Frequently Asked Questions

• Is the Etronix Pulse EX4S suitable for RC car beginners? — Absolutely. The Pulse EX4S is specifically designed with ease of use in mind, making it an ideal choice for beginners and those new to RC driving. The stick transmitter format is intuitive and comfortable, whilst the straightforward feature set focuses on the essentials without overwhelming new users with unnecessary complexity. Digital trim and dual-rate adjustments are easy to access and adjust, helping beginners fine-tune their driving experience without needing technical knowledge.
• What batteries does the Etronix Pulse EX4S transmitter need? — The transmitter requires 4 x AA batteries to operate. These are standard alkaline or rechargeable AA batteries available from any supermarket or electronics retailer, making it very easy and inexpensive to keep your radio system powered. The integrated charging port means you can also charge rechargeable AA batteries directly in the transmitter if you prefer.
• What is the operating range of this RC radio system? — The Etronix Pulse EX4S delivers a 200-metre surface range, which is more than sufficient for most RC hobbyists. This distance allows you to drive your model across large open spaces, racing circuits, beaches and parks without experiencing signal loss or control dropout, even in areas with moderate wireless interference.
• Does the Etronix Pulse EX4S include a receiver? — Yes, the system ships complete with one ET1166 2.4GHz FHSS receiver included in the box. The receiver is compact and lightweight at just 31mm x 20mm x 13mm, making it compatible with a wide range of RC surface models. If you need additional receivers for multiple vehicles, the ET1166 is available separately.
• What does the failsafe function do? — The built-in failsafe is a critical safety feature that automatically cuts power to the throttle channel and returns the steering to centre if your radio signal is lost or interrupted. This prevents your model from running away uncontrolled and reduces the risk of damage or injury if your vehicle goes out of range.
• Can I reverse servo directions on this radio? — Yes, the servo reversing function allows you to reverse the direction of any servo channel directly from the transmitter without opening your vehicle or changing physical connections. This saves considerable time during setup and configuration.
• What types of RC vehicles can I use with the Etronix Pulse EX4S? — This 4-channel system is designed for basic surface models, including RC cars, buggies, trucks and similar ground-based vehicles. The four channels provide control for steering, throttle, and two additional functions via the toggle switches, giving you flexibility to operate a wide variety of entry-level and intermediate RC surface models.
• How do digital trim and dual-rate adjustments help my driving? — Digital trim lets you fine-tune steering and throttle response to compensate for vehicle imbalances or match your personal driving preferences, helping you achieve perfect straight-line tracking and smooth acceleration. Dual-rate adjustment switches between two pre-programmed sensitivity levels, allowing you to use gentle steering and throttle for learning and smooth driving, then switch to maximum throw and response for aggressive racing and high-performance driving.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the ETRONIX PULSE EX4S 4CH 2.4GHZ FHSS STICK RADIO SYSTEM ET1109 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.