v3 ludicrous mode

focus V3

2023 Edition


Out of stock

(10 customer reviews)

Focus V3 Electrical Brain Stimulator

Featuring New Exclusive tRCS Mode.
Includes tDCS, tACS, tRNS, tPCS, sotDCS.

Now double the current – 4mA max

tDCS, tACS, tPCS, tRNS, tRCS, so-tDCS – all conifgurable

Sham, ramping, bluetooth, oscilliscope, voltage, accuracy

V3, Headband, amx/y electrodes, sponges, magnetic x/y cable, bottle, instructions. Just add water (to bottle).

V3 is the worlds most advanced electrical brain stimulator. Includes magentic cable, amx-y electrodes and sponges – everything you need to get started. v3 ludicrous mode

focus V3


Out of stock

Let's start with tDCS

After all, FOC.US are acknowledged as the company that started the consumer tDCS market. did tDCS first.

tDCS mode in V3

The secret to safe tDCS is maintaining a constant current throughout each stimulation session. The minimum requirements of a tDCS stimulator are simply:

If you cannot check the actual current during a stimulation session then you are not getting tDCS.

The V3 shows you a live graph of the actual current delivered during each stimulation session.

Why is a current display important?

Target current is not the same as actual current. Ohms Law dictates that the actual current is equal to the voltage divided by the resistance.

The resistance comes from the cable, electrodes, sponges and impotantly your head!

What is the resistance of my head?

The resistance of your head includes hair, skin, bone, blood and brain (great name for a rock band). The most important thing to know is that the resistance is constantly changing.

Back to Ohms Law, to get a steady current with a changing resistance requires a dynamic voltage.

The Proof is in the Display

Designing a tDCS stimulator to accurately control the output current is difficult because of these changes in resistance. If the voltage is not set according to the measured resistance you will receive current spikes.

So a realtime current display is essential for assurance, safety and honesty.

Really Accurate Current

The V3 is the most accurate tDCS stimulator available. From any manufactuer. Bar none. 


The V3 measures the resistance in your head 50,000 times per second  and alters the voltage 50,000 times to ensure the target current is met. 

Result: accurate, stable, tDCS current.

The actual current is displayed on the screen and logged to file. You know you are getting tDCS with

Included with every V3

*not shown in picture

Starter Programs

V3 is pre-programmed with starter stimulation programs.

Every program can be customised and any of the parameters can be configured via the EDIT menu.

Each program highlights a different stimulation mode.

medium power
moderate intensity
moderate gradient
Click Here
3rd eye
Click Here
tPCS 1.5mA
1.2mA offset
20% duty cycle
Random Current
Click Here
0.125mA 40Hz
Timed start
Motion pause
Click Here
Previous slide
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What's Included

  • V3
  • Headband
  • x/y magnetic cable
  • 2 x amx-y silicone electrodes
  • 2 x sponges
  • Water bottle
  • USB charging cable
  • Carry case 

Stimulation Modes

  • tDCS
  • tACS
  • tRCS
  • sotDCS
  • tRNS
  • tPCS


  • OLED digital display
  • Active Current Oscilloscope

Battery and Power

  • Internal 300mAh rechargable battery

  • USB charging cable


  • Current: 0.1 to 2.0mA
  • 0 to 40 min timer
  • Frequency 0.1Hz to 1kHz
  • Offset, duty cycle settings
  • Uni or bipolar modes
  • Blind, Double blind sham modes featuring fake graph
  •  On/Off current ramping


Store all V3 components in the case when not in use. Sponges should be squeezed dry and will reshape when next wet.

Materials Used

The headband is made of a soft, synthetic poyester. The amx-y electrodes are made from skin-safe FDA approved silicone. 

The carry case is made from EVA plastic.

Environmental Requirements

  • Operating temperature: 0° to 70° C
  • Maximum operating altitude: 50,000ft


You must monitor yourself during DIY-tDCS and end the session or reduce the current if any adverse short-term negative effects.


Super accurate tDCS with a digital gauge, a microprocessor timer and triple current locks. The best electrical stimulator in the world.


Configurable from 0.1Hz to 1kHz alternating current stimulation that you control

Sleep & Lucid Dream mode

Configure stimulation to start in the future with the built in timer mode. Also use motion detection to ensure you are in right sleep stage.


Random Noise stimulation with random frequency, current or both. Shake it up!


Pulsed current with settings for duty cycle, offset and more.

Exclusive tRCS

Rippled Current in the alphawave frequencies (α-tACS) to entrain and lift your peak alpha

Safety Precaution

Enable safety mode to ensur eyou don't stimulate more than every day or two days.

Session Logs

Download a log of the current measurements from a stimulation session.

Blind Placebo Mode

Set blind or double blind placebo mode. Includes initial ramping and fake current gauge.

Rechargable Battery

Internal battery is good for 3-5 sessions dependent on load. Use the included USB cable to quickly and easily recharge.

Manual Control

Every feature can be set using the 5 way joystick and the intuitive realtime operating system

B1uetooth Low Energy

Connect your smartphone and use the Focus app to control your V3 stimulator.

*Battery life and charge cycles vary with use, settings, and other factors; actual results will vary. Smartphone notifications unavailable on Windows devices.

Latest Neuroscience Research Possible with V3

Compare Brain Stimulators

Max current mA

4.0 mA

2.1 mA

Maximum voltage


Configurable 15V to 65V

Stimulation Modes




27mm x 27mm x 12mm

60mm x 28mm x 9mm


9V Dry Alkaline PPV9

Internal rechargable LiPo 3.7V



Bluetooth Low Energy





3 way rocker switch
UP increase
DOWN decrease
PRESS confirm

5 way joystick
On-screen navigation UI

App control iOS & Android

Included Programs


Gamer, 3rd Eye, Sports, eDream,

Weight 0.3 kg
Dimensions 28 × 29 × 2.5 mm

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10 reviews for focus V3

  1. David

    Feels good

    This is an early review after a few days use.
    Device feels solid and is easy to control. Very similar to V2 but with rippled contours.
    Screen is a little distorted in the center line and unreadable in bright sunshine.
    The electrodes, cable and headband appear to be the same as in other kits.
    No instructions included but maybe that was just mine?

    Not sure if 3rd Eye program works but it’s why I purchased it so will keep trying.

  2. Debbie

    Lot of features

    The V3 is really quite good. It has got a lot of functionality for the price. So much so that I haven’t tried all the modes yet.

  3. W

    highly recommended

    Really pleased with the V3. I’ve been using v2 for a few years but the battery life was showing its age. v3 works the same as the v2 for me.

  4. jasonm

    Good enough

    Just got this after a very long wait! Focus asking for a review. Well, its a good enough product. Not the easiest thing to get started with but a heck a lot of features. I have been using the go flow to manage my moods with some success, but wanted to try alternating current modes. So far, I’m happy. tACS feels really different! Can’t say yet if its better.

  5. Geary

    early impressions are good

    Possibly too soon to ask for a review as only received the V3 earlier this month, however first impressions are good.
    Device feels solid and easy enough to use. Lack of instructions could be an issue for some people.
    Maybe better to review in a month after more use.

  6. Green

    Like v2

    If you’ve used a v2 you will find the v3 very familiar. The menus are the same and the device is the same physical size, give or take. The electrodes and cable also appear to be the same. So basically v3 is a lot like v2 as far as I can tell.
    The main difference appears to be the change from a charging dock to a charging usb cable, and the new modes. The price is about the same, since all the accessories are now included.

  7. George

    tdcs calming

    I find tDCS makes me feel extremely calm. Not relaxed calm, but tranquil calm.

  8. happy

    love it

    I love it!

  9. Marcelo

    Preferred v2

    Balancing the warped screen view against the extra features I think I prefer the v2 model.

  10. Yu

    Possibly great

    This may be a great device but it’s quite hard to know with so little guidance.
    If I want to try the other modes like tACS and tRNS where can I find instructions and placements?
    I hope you are going to give more information.

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V3 tACS Mode

focus V3

(10 customer reviews)

Focus V3 Electrical Brain Stimulator

Featuring New Exclusive tRCS Mode.
Includes tDCS, tACS, tRNS, tPCS, sotDCS.

Now double the current – 4mA max


Out of stock

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