What is tDCS?
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Transcranial Direct Current Stimulation (tDCS) is a form of non-invase neurostimulation that delivers a constant low level current to the brain through the use of electrodes placed on the scalp. This neuromodulation technique uses a steady current between 1 - 2 mA delivered through electrodes to targeted regions of the brain to modulate brain function. Using different electrode configurations, tDCS can be used to either excite or inhibit neuronal activity in the targeted region.
Headquartered in New York City, Caputron is the leading worldwide distributor of home, clinical and research neurostimulation technology, such as tDCS, TMS, CES and EEG. By partnering with world-class device manufacturers, we supply a range of excellent neurostimulation devices and accessories, such as Transcranial Magnetic Stimulation (TMS), Cranial Electrotherapy Stimulation (CES) and Transcranial Direct Current Stimulation (tDCS).
The new and improved tES device by Focus with tDCS, tACS, tPCS, tRNS and tRCS waveforms as well as blind and double blind placebo (sham) modes. Easy to use interface consisting of just a simple yet unique 4 way joystick. Built in LCD screen shows device settings. Small and portable, the V3 has a rechargeable battery and includes the necessary accessories to get started with tDCS right out of the box. Grab a Focus V3 to fully customize your neuromodulation sessions. The Focus V3 is CE marked.
The Focus V3 tES device features tDCS (Direct Current), tACS (Alternating Current), tPCS (Pulsed Current), tRNS (Random Noise) stimulation and an all new tRCS (Rippled Current Stimulation). Inside foc.us V3 is a 32Bit ARM® Microprocessor. Using advanced micro-electronics ensures accurate stimulation. Impedance changes can be detected and correct in 50 micro seconds. This means target current levels are super-accurate and super-stable. Only the best components were used in construction from such manufacturers as Texas Instruments, Seiko and Panasonic.
The new foc.us V3 features a rippled current stimulation (tRCS). tRCS is a dynamic tACS. The waveform ripples after the stimulation frequency as a function of time.
Inside foc.us V3 is a 32Bit ARM® Microprocessor. Using advanced micro-electronics ensures accurate stimulation. Impedance changes can be detected and correct in 50 µ seconds. This means target current levels are super-accurate and super-stable. Only the best components were used in construction from such manufacturers as Texas Instruments, Seiko and Panasonic. If you want the best, this is it.
Getting started with foc.us is simple. The blue OLED digital display and 4-way joystick make light work of controlling your session. During stimulation you can see the exact session time remaining, the active current value in mA plus a real-time graph of the actual current.
The dynamic frequencies entrain your brainwaves. The frequency shift then lifts entrained brainwaves higher.
Targetting the occipital lobe for increased visual awareness. See more with focus V3.
It is important not to mis-use electrical stimulation through over or repeat usage. That is why the foc.us V3 includes a real time clock. It will warn you if you try to start a stimulation session too soon after your last session. It also times and limits each session to the maximum recommended length of 40 minutes. You can also use the timer to start your session up to 12 hours in the future. This is useful if you want a session to start when you are asleep. All session logs are stamped with the time they were started for your convenience.
foc.us was designed with the aim of being both small and powerful. V3 includes a 3 axis accelerometer. It provides raw data for X, Y and Z movements as well as slope detection, tap sensing, orientation recognition, g-force detection and inactivity sensing. This movement detection is used in the lucid dream program to stop stimulation when movement is detected. Weighing in at less than the battery found in some DIY stimulators yet generating an output 6x higher.
The focus V3 implements recommended safety guidelines for transcranial stimulation
V3 can be controlled via the foc.us/me Android app.
tDCS - transcranial direct current stimulation
tDCS mode current can be set from 0.1 to 2.0 mA for session durations between 1 and 40 minutes. Voltage can be also be controlled from 10 V to 60 V. Actual current is logged every 50 ms for an accurate record of the session. Featuring current ramp up and ramp down to make session start and end as comfortable as possible.
tACS - transcranial alternating current stimulation
tACS mode current can be set from 0 to 2 mA for session durations of between 1 and 40 minutes. Frequency can be set between 0 and 300 Hz in both unipolar and bipolar modes. A current offset between 0 and the target current can also be specified.
tPCS - transcranial pulsed current stimulation
Set the duty cycle and frequencey for pulsed current stimulation sessions. You can set Sham to ON, and have no graph, or set sham to BLIND and the focus V3 will either show the real current graph or create a fake graph.
tRNS - transcranial random noise stimulation
Randomize the current, the frequency or both and set the range boundaries for each. tRNS is becoming increasingly popular in todays electrical brain stimulation studies.
Future modes may be added via firmware update
Focus V3 Starter Kit Unboxing and Product Demo
No. All functionality of the V3 is available via the joystick and LED display. Alternatively, V3 can be controlled via the foc.us/me Android app.
Probably the most important function of an electrical stimulator is ensuring that the target current level is correctly maintained. This is an explanation of how foc.us control the current output in the foc.us V3. There is a hardware current regulator which is controlled by the MCU. The MCU does not participate in current regulation, it just sets the target current value to the current regulator input. The hardware current regulator is very fast. It can change the output current from the minimum 0mA to the maximum 2mA in 300 µ seconds at full impedance load. At lower resistance levels it can do it even faster. The current of the high voltage source is hardware limited to 2.1 mA, which is fed to the hardware current regulator,.which as described above can quickly change the output current to the targeted value and thenthe final step is an independent hardware current limiter, configured to 2.1 mA between the hardware current regulator and the electrodes. In summary, the input to the hardware current regulator cannot exceed 2.1 mA, which is then shaped into the signal e.g. tdcs, trns, tpcs, tacs at the desired current level - which is limited to 2 mA, and then passed through a final limiter before the electrodes. This provides super fast, super safe signal generation. As part of the assembly process we test and verify that all three of these circuits are functioning correctly. We perform this test on every single device. 100% testing.
Plug the included USB cable into your laptop or phone charging cube. If you do not see the battery icon, then your device is not charging.
Need to Return Your Purchase? It's Easy - Caputron Offers 90 Day Hassle Free Returns
Our return policy is simple. If you are not 100% satisfied with your purchase from Caputron you can return your item(s) within 90 days of purchase. If 90 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.
(Returned devices must be in a new undamaged condition.) Merchandise returned damaged may not qualify for a refund.
Opened or used accessories such as electrodes, gel, saline, or other consumables are not eligible for a refund.
Packages are generally dispatched within 1-3 days after receipt of payment, though some exceptions may apply, and are shipped via UPS, DHL and USPS with tracking (when applicable) and drop-off without signature. If you prefer delivery by a different method, please contact us. Delivery with signature is available for an additional fee.
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International Customers Please Note: Any additional fees required by customs will be the responsibility of the buyer. We cannot control customs processing times in international countries. It is not uncommon for USPS First Class/Flat Rate parcels, or packages of any type, to get caught up in customs for weeks at a time. We highly recommend using UPS or DHL for international orders as they provide faster customs processing times and accurate tracking updates. We are not responsible for any added time due to customs. We will not be liable for, nor will any adjustment, refund, or credit of any kind be given as a result of any delay, misdelivery, or non-delivery. Items returned to us that were deemed undeliverable and are not damaged in any way are subject to partial refund for the cost of the merchandise minus the cost of shipping. At the discretion of both Caputron and the buyer, redelivery may be attempted for additional shipping costs determined prior to reshipment.
* When offered, free shipping is eligible only for the contiguous United States and does not apply to items that need to be shipped freight or for certain research items.
Focus V3 tES Device
I am always confident when ordering supplies from Caputron.
Caputron is great, but this particular device isn't that great. It didn't come with any instructions. It has a few preset programs you can run, but the only thing you can adjust is the duration and the amps. That's it. I need a little more freedom than that. It's tiny and very portable. Other people might find what they want in this device. I personally did not.
Caputron do great things for it's customers. Even when you do not ask for additional services - it does it. Seems like Caputron is reading my mind :)
Everything works ok so far, and the stimulation can be effective with the right protocol. Only issue is the app is glitchy.
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