Raw 24bit Brainwave Data via WiFi

The EEG Dev Kit allows fleixble montages and control over every variable - Sample Rate, EDF+, bio-channels and more

focus V3

(10 customer reviews)

Focus V3, Featuring New Exclusive tRCS Mode.
Includes all V2 functions & features
In Stock Now.


In stock


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.

To navigate, click the buttons below or press the arrow and enter keys on the keyboard.

What’s Included

  • Foc.us V3
  • Foc.us 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 Foc.us 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.


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 foc.us 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.

Add a review