RadioMaster TX16S Mark II Radio Controller (Mode 2) ELRS — a powerful, multifunctional radio controller from the Radiomaster brand, designed for drone and quadcopter enthusiasts and professionals. This updated TX16S Mark II version combines reliability, advanced connectivity, and ease of use, providing flexible settings for various types of aircraft.

Key Improvements in TX16S Mark II

• Improved internal power circuit and optimized power source for increased controller stability;New charging circuit with reverse polarity protection and optimized charging IC, allowing internal USB-C charging current up to 2.2A;
• Added a rear audio jack for headphones, convenient for voice prompts and telemetry;
• Gimbal V4.0 with more stable centering and external travel and tension adjustment capability;
• Additional high and low rear grips included for improved ergonomics;
• Improved S1/S2 knobs with clear center detents and updated LS/RS sliders with smoother operation;
• Upgraded battery compartment cover for easier access and maintenance;
• Trainer port replaced with a standard 3.5mm TRS; a dedicated DIY port added for personalized mods;
• Increased durability due to improved plastic internal components.

Key Features and Compatibility

• Built-in internal ELRS (ExpressLRS) multi-protocol module for reliable long-range communication;
• Support for up to 16 control channels (depending on receiver) and advanced functions for various aircraft models;
• Compatibility with EdgeTX (installed by default) and OpenTX firmware — possibility of updates and fine-tuning;
• Compatibility with external JR modules (TBS Crossfire Micro, Frsky R9M, etc.) and full support for TBS Crossfire systems for long-range flights;
• Telemetry functions (depending on receiver), voice prompts, and vibration for pilot notification;
• Ability to use the controller as a simulator controller via computer connection.

Technical Specifications

• Size: 287x129x184 mm;
• Weight: 750 g (without battery);
• Transmission frequency: 2.400 GHz–2.480 GHz;
• Transmitter module: internal multi-protocol ELRS (CC2500, CYRF6936, A7105, SX1280);
• Transmission power: internal ELRS up to max. 250 mW (adjustable);
• Antenna gain: 2 dB (adjustable power);
• Operating current: 400 mA;
• Operating voltage: 6.6–8.4 V DC;
• Control range: over 2 km at 22 dBm (actual performance depends on conditions, antenna, and receiver configuration);
• Radio firmware: EdgeTX (OpenTX can be used);
• Module firmware: ExpressLRS (ELRS);
• Channels: up to 16 channels (depending on receiver);
• Display: 4.3-inch full-color TFT IPS 480x272 touchscreen for convenient telemetry viewing and settings;
• Processor: STM32F429BIT6;
• Module bay: compatible with JR modules for extended functionality;
• Update method: via USB-C online or offline from SD card;
• Standard FCC version: ELRS (FCC) pre-installed, maximum power depends on hardware configuration.

Package Contents

• TX16S Mark II controller;
• 18650 battery protective case;
• USB-C cable;
• Screen protector film;
• One pair of flat grips and one pair of raised grips (raised grips installed by default);
• TX16S keychain.

Additionally required: 18650 Li-Ion batteries (2 pcs.) or a 2S Li-Po battery of appropriate size. The large battery compartment, measuring 97x52x25 mm, allows for the installation of a high-capacity 2S LiPo or two 18650 Li-ion batteries in the included case.

Radiomaster TX16S Mark II — an excellent choice for FPV pilots and model enthusiasts seeking a versatile, customizable, and reliable controller with a built-in ELRS module, convenient USB-C charging, a large color display, and extensive expansion capabilities. Thanks to Crossfire support, JR modules, modern hardware solutions, and improved ergonomics, this controller is suitable for both beginners and experienced users who require stable communication, flexible settings, and long operational life.

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