Q: What is the Jumper T20S / T20 V2 radio controller?

A: It is a compact FPV transmitter based on ExpressLRS, designed for reliable long-range control and low-latency performance.

Q: What frequency options are available?

A: It is available in ELRS 2.4GHz and 915MHz versions depending on region and use case.

Q: Does the controller come with ELRS built-in?

A: Yes, both T20S and T20 V2 include built-in ExpressLRS, no external module is required.

Q: What firmware does the T20S / T20 V2 use?

A: It runs EdgeTX firmware for flexible configuration and full transmitter control.

Q: What are the main differences between T20S and T20 V2?

A: The T20 V2 features updated internal hardware improvements while keeping the same ELRS ecosystem and compact design.

Q: How many channels does it support?

A: It supports up to 16 channels via ExpressLRS protocol.

Q: Is it compatible with all FPV drones?

A: It is compatible with any FPV drone that supports ExpressLRS receivers.

Q: Does it support long-range FPV flying?

A: Yes, ExpressLRS provides strong signal stability and low latency for long-range flights.

Q: Is the controller portable?

A: Yes, it features a compact and lightweight design for easy transport and field use.

Q: What should I check before buying?

A: Make sure to select the correct ELRS frequency (2.4GHz or 915MHz) based on your region regulations.

Q: Does it require external RF modules?

A: No, it has a built-in ExpressLRS RF system.

Q: What kind of control experience does it provide?

A: It provides precise gimbal control and low-latency response for FPV flying.

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Jumper T20S T20 V2 ELRS 2.4G/915MHz Radio Controller

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Top highlights

Full-size hall gimbals with precise control.
Built-in ELRS 2.4 GHz with up to 1 W output.
Bright 1.3" OLED display for easy navigation.
Dual 21700 battery tray with USB-C support.
Customizable buttons and external XT30 module power.

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Jumper T20 V2 and T20S V2 Buying Guide

The Jumper T20 V2 radio controller combines full-size gimbals, EdgeTX and an adjustable 1W ExpressLRS module in a body that is easier to pack than many traditional full-size transmitters. Buyers can choose Hall or RDC90 gimbals and 2.4GHz or 915MHz ELRS, making the selection more important than simply choosing the lowest price.

MEPSKING Expert Assessment

Based on our MEPSKING evaluation of the V2 hardware changes, setup workflow and verified pilot feedback, the T20 V2’s biggest strength is its balance of portability and full-size control. The gimbals remain comfortable for both thumb and pinch-style pilots, while the switches, sliders and six-position controls provide enough inputs for FPV drones and more complex RC models.

The V2 cooling fan is a meaningful improvement when using higher ELRS power for extended periods. The main compromises are the small 1.3-inch monochrome display and batteries not being included. In normal park or freestyle flying, 100–250mW is usually more battery-efficient; 1W should be reserved for situations that genuinely require additional link margin.

What Did the T20 V2 Upgrade?

Upgrade	Practical Benefit
Active Cooling Fan	Improves thermal management during prolonged high-power ELRS use
Upgraded MCU	Provides more processing and storage headroom for EdgeTX
Revised Front Housing	Gives pinch-style fingers more clearance around the gimbals
Included Carrying Case	Protects the folding antenna, gimbals and switches during travel

Jumper T20 V2 vs T20S V2

Buying Factor	T20 V2 Hall	T20S V2 RDC90
Gimbal	Magnetic Hall sensor	Premium RDC90 sensor
Control Feel	Smooth, precise and suitable for most pilots	Refined feel for pilots who prefer RDC90 response
Best Value	Better value for beginners and general FPV	Better for experienced pilots with a specific gimbal preference

The RDC90 version is not automatically more accurate in every pilot’s hands. If you cannot test both gimbals before purchasing, the T20 V2 Hall is the safer value choice. Choose the T20S V2 when premium stick feel is worth the additional cost to you.

2.4GHz or 915MHz?

Choose 2.4GHz for general freestyle, racing, simulator-to-field progression and broad compatibility with common ELRS receivers. Choose 915MHz when penetration and long-range use are the priority, but only if 915MHz is permitted in your region. The transmitter and aircraft receiver must use the same frequency band.

MEPSKING Purchase Verdict

Buy the Jumper T20 V2 Hall if you want the strongest price-to-feature balance. Upgrade to the T20S V2 RDC90 if gimbal feel is your priority. Pilots who prefer a larger case, larger battery compartment and standard JR module bay should also compare the RadioMaster Boxer MAX. Whichever T20 version you choose, add two matched 21700 cells because batteries are not included.

Specification

MCU:STM32F407ZGT6

External module interface: Reserved (1.25mm-5P)

Screen: 1.3" OLED (128*64)

External module power supply: XT30 (2S2A output)

SD card: Chip-based internal (officially recommended by EdgeTX)

Gimbal size: Standard full size gimbal

Voltage: 6-8.4V

Gimbal sensors: RDC90 / Hall optional

Battery: 2pcs 21700

Power Output: Maximum 1W

Weight: 443g(battery not included)

Recommended Pairings

● Molicel M50A 21700 5000mAh Li-Ion Battery – 2PCS

● Skyzone Cobra X V4 5.8GHz Analog FPV Goggles

● MEPS Fireproof Lithium Battery Safety Bag

Recommendation

More expert advice

How to Choose an FPV Radio Controller

Top 5 RadioMaster FPV Controllers

How to Bind Radiomaster Pocket to FPV Drone?

Reviews

S*******Z
Verified

very responsive sticks, great for both long range and freestyle.

Option：T20 V2 2.4 HALL
F****y
Verified

love the radio, website looks clean and well-categorized. hall gimbals are precise right out of the box.

Option：T20 V2 2.4 HALL
S*********X
Verified

The Jumper T20S V2 feels amazing in hand! The RDC90 gimbals are super smooth, way better than standard Hall sensors. shipped it fast, and it was wrapped in double bubble wrap.

Option：T20S V2 2.4 RDC

Additional reviews after 18 days
been flying for 2 weeks now. The ELRS 2.4G link is rock solid even when pushing some distance. The metal switches feel crisp.
D*******s
Verified

mepsking service was sweet, they even threw in some stickers. signal is flawless at my local park, no interference at all.

Option：T20S V2 2.4 RDC
A*********8
Verified

Very smooth gimbal and great response in freestyle flying.

Option：T20 V2 2.4 HALL
B*********r
Verified

The controller quality is decent, good screen and responsive. battery life is also okay.

Option：T20 V2 2.4 HALL
O***********n
Verified

got this quicker than expected! setup was simple and menus are easy to navigate even for a newbie like me.

Option：T20 V2 2.4 HALL
C*********l
Verified

good build quality and easy binding process with my quad.

Option：T20 V2 2.4 HALL

FAQ Feel free to ask us any questions

Q: What is the Jumper T20S / T20 V2 radio controller?: A: It is a compact FPV transmitter based on ExpressLRS, designed for reliable long-range control and low-latency performance.
Q: What frequency options are available?: A: It is available in ELRS 2.4GHz and 915MHz versions depending on region and use case.
Q: Does the controller come with ELRS built-in?: A: Yes, both T20S and T20 V2 include built-in ExpressLRS, no external module is required.
Q: What firmware does the T20S / T20 V2 use?: A: It runs EdgeTX firmware for flexible configuration and full transmitter control.
Q: What are the main differences between T20S and T20 V2?: A: The T20 V2 features updated internal hardware improvements while keeping the same ELRS ecosystem and compact design.