Overview
The FrSky TWIN X-Lite RII transmitter is a compact 2.4G radio system designed for RC model control, featuring the TWIN “TW” active-active dual 2.4G band protocol (two 2.4G frequency bands active simultaneously on the RF module and receiver). It also supports ACCST D16 and ACCESS modes, providing flexible receiver compatibility across different builds. The RII version integrates 4 enhanced-performance built-in 2.4G antennas positioned along the upper edge of the screen to improve RF stability in complex radio environments.
Key Features
- Dual 2.4G system with TW active-active protocol for low-latency operation (<4 ms) with full telemetry support in TW mode
- Multi-protocol support: ACCST D16 / ACCESS / TW mode
- ETHOS operating system
- 800 × 480 high-brightness touchscreen with sliding screen design and upgraded sliding rail structure
- Input layout: 6 trims (4 AETR trims + 2 additional trims) and 4 quick-mode custom buttons
- 2 upgraded top sliders with center detent and damping feedback
- Top controls: 2 momentary buttons, 2 sliders, and 4 switches
- MC12 CNC metal gimbals with integrated high-precision Hall sensor; analog gimbal output
- M3 all-around spiked anti-slip stick ends
- Built-in 6-axis gyroscope sensor (motion control)
- Built-in 512MB flash storage plus TF card slot for expansion
- USB Type-C for data transmission and battery charging; supports 2S battery charging
- Haptic vibration alerts and voice speech outputs
- Lite type external module bay
- Foldable tab / neck strap hook
- High-speed PARA wireless training system (Bluetooth) and wired trainer function (DSC)
- Fixed built-in RF power: 100 mW (non-adjustable)
- Removable battery compartment cover
Specifications
| Model | TWIN X-Lite RII |
| Dimensions (L x W x H) | 197 x 131 x 68 mm |
| Weight | 487 g (battery incl.) |
| Operating System | ETHOS |
| Internal RF Module | TW-ISRM |
| Number of Channels | Up to 24 channels |
| Built-in RF Power | Fixed 100 mW (non-adjustable) |
| Supported RF Protocols | ACCST D16 / ACCESS / TW mode |
| Battery | Includes 2100mAh 2S Li-ion battery |
| Operating Voltage Range | 6.5 - 8.4 V (2S Li-battery) |
| Operating Current | 440 mA @ 7.4 V (typ.) |
| Operating Temperature | -10°C to 60°C (14°F to 140°F) |
| Battery Bay Size (L x W x H) | 68 x 44.5 x 13 mm |
| Data Transmission & Charging Interface | USB Type-C |
| USB Adapter Voltage / Current | 5V + 0.2V, > 2.0A (use a certified 10W/15W power adapter) |
| Storage | Built-in 512MB flash storage + TF card slot |
| LCD Touchscreen Resolution | 800 x 480 |
| Gimbal | MC12 CNC metal gimbals with integrated high-precision Hall sensor |
| Gimbal Output Signal | Analog |
| Gimbal Stick Ends Size | M3 |
| External Module Bay Type | Lite module bay |
Applications
- RC aircraft and gliders (trim-friendly layout for frequent in-flight adjustments, such as flap/surface tuning)
- RC helicopters and multirotors requiring multi-protocol receiver compatibility
- Motion-sensing control use cases via the built-in 6-axis gyroscope (when supported by the model setup)
For setup or compatibility questions (receivers, binding modes, firmware, charging), contact support@rcdrone.top or visit https://rcdrone.top/.
Details

ETHOS-based spec comparison highlights the TWIN X-Lite RII upgrades, including up to 24 channels, USB‑C charging/data, and TW/ACCESS/ACCST D16 protocol support.
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