Weight | 0.3 kg |
---|---|
Dimensions | 28 × 29 × 2.5 mm |
Technology | |
Uses | Accelerated Learning, Faster Gaming, Flow State, Increased Endurance, Skill Acquisition, Working Memory |

focus V3
2021 Edition
£349.00
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.

focus V3
£349.00
Let's start with tDCS
After all, FOC.US are acknowledged as the company that started the consumer tDCS market. Foc.us 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:
- Accurate Actual Current Display
If you cannot check the actual current during a stimulation session then you are not getting tDCS.
The foc.us 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 foc.us V3 is the most accurate tDCS stimulator available. From any manufactuer. Bar none.
Why?
- 50,000 Reasons
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 foc.us

Included with every Foc.us V3
- Foc.us V3
- 2 * Amx/y Electrodes
- 2 * Sponges
- Magnetic x/y cable
- USB Recharge Cable
- Water Droplet Bottle
- Carry Case
- Instruction Manual*
*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.
1.5mA
10min
20V
anodal
medium power
moderate intensity
moderate gradient
30V
1.618mA
936Hz
Bipolar
11min
1.5mA
1Hz
Unipolar
18min
30V
1.2mA offset
40Hz
20% duty cycle
Unipolar
10mins
15V
1.6mA
Unipolar
10min
Random Current
1Hz
0.125mA 40Hz
bipolar
Timed start
Motion pause
30mins
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
Display
- OLED digital display
- Active Current Oscilloscope
Battery and Power
Internal 300mAh rechargable battery
USB charging cable
Settings
- 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
Care
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
Safety
You must monitor yourself during DIY-tDCS and end the session or reduce the current if any adverse short-term negative effects.

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

tACS
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.

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

tPCS
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 foc.us Brain Stimulators
Max current mA
4.0 mA
2.1 mA
Maximum voltage
25V
Configurable 15V to 65V
Stimulation Modes
tDCS
so-tDCS
max-tDCS
dual-tDCS
tDCS
tACS
tPCS
tRNS
tRCS
so-tDCS
Dimensions
27mm x 27mm x 12mm
60mm x 28mm x 9mm
Battery
9V Dry Alkaline PPV9
Internal rechargable LiPo 3.7V
Connectivity
-
Bluetooth Low Energy
Certification
CE60601:2-10
CE60601:2-10
FCC
Controls
3 way rocker switch
UP increase
DOWN decrease
PRESS confirm
5 way joystick
On-screen navigation UI
App control iOS & Android
Included Programs
D.I.Y.
Gamer, 3rd Eye, Sports, eDream,
10 reviews for focus V3
You must be logged in to post a review.

focus V3
Focus V3 Electrical Brain Stimulator
Featuring New Exclusive tRCS Mode.
Includes tDCS, tACS, tRNS, tPCS, sotDCS.
Now double the current – 4mA max
£349.00
Page References:
Please note page content is in development, may not be complete and is subject to change at any time. Links provided for reference only. Linked sites may include 3rd Party content, adverts and more.

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.
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.
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.
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.
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.
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.
George –
tdcs calming
I find tDCS makes me feel extremely calm. Not relaxed calm, but tranquil calm.
happy –
love it
I love it!
Marcelo –
Preferred v2
Balancing the warped screen view against the extra features I think I prefer the v2 model.
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.