Getting started with SmartDream.
From the underlying mechanism to the 4-step usage flow, accurate specs, and safety guidance — everything on one page.
How to use it — in one minute.
From patch placement to device connection and ending the session — the standard flow in a short video.
Duration 1:08 · 720p · Audio: Korean
Documents
Download the official manual
PDF copies of the user manual and quick-start guide that ship in the product box.
How it works
A forehead patch delivers a microcurrent to the trigeminal nerve.
A current at the level of a faint tingling sensation travels through the trigeminal nerve to prefrontal-related brain regions. It is a non-invasive wellness approach: no skin penetration, no implanted substances.
Read the scientific background+
Trigeminal nerve stimulation (eTNS). The trigeminal nerve is the largest cranial nerve in the head. When stimulated, signals travel to attention-related regions including the locus coeruleus (LC), thalamus, and cerebral cortex.
LC-NE system activation. The Locus Coeruleus–Norepinephrine system is closely tied to sustained attention. When activated, it suppresses distractions and supports a state of focused engagement, with particular activation of the right frontoparietal network for information processing and concentration.
How to use
Four steps, every night before bed.
The standard sequence per the product manual. Replace the patch daily for hygiene and effect.
01
Prep the skin
Wipe the forehead clean, removing makeup, oil, or moisture. Cosmetics and oil can raise current resistance.
02
Place the patch
Remove the patch's backing paper and apply it firmly to the center of the forehead, just above the eyebrows.
03
Route the cable
Run the cable behind the ear and adjust the electrode length to a comfortable fit.
04
Connect and set intensity
Plug the EMS cable into the device output port, then long-press the power button for 3+ seconds to turn it on. Enter the initial password 2580, then choose a comfortable current (0.1~10.0 mA) and a session length. One patch per day is recommended.
Components
What's in the box.
- SmartDream device (EMO-1)
- EMS cable
- 7 electrode patches
- User manual
※ A USB-C charging cable is sold separately. Use a compatible USB-C charger (15W or higher).
Specs
Specs at a glance.
Exact values per the product manual. Full specs expand below.
173 g
Device weight
68 × 132 × 16.8 mm
12 h
Use per charge
Max session time on a full charge
4.5 h
Full charge time
USB-C, 5V 3A
100 steps
Intensity control
0.1 ~ 10.0 mA
Show the full spec table (15 items)+
- Product name
- SmartDream
- EMC registration
- R-R-EMO-EMO-1
- Manufacturer
- Emology Inc.
- Size / Weight
- 68 × 132 × 16.8 mm / 173 g
- External power
- USB-C
- USB power input
- Adapter DC 5V ~ 3A (sold separately)
- Battery
- Li-ion Polymer (DC 3.7V, 3000 mAh)
- Charge time
- About 4h 30m (full charge from empty)
- Use time per charge
- About 12h
- Intensity
- 0.1 ~ 10.0 mA — 100-step current control
- Max session time
- Up to 12h
- Made in / By
- South Korea / Emology Inc.
- In the box
- Device, EMS cable, 7 electrode patches, user manual
- Warranty
- 1 year from purchase (excluding consumables and normal wear)
- Regulatory class
- Not a medical device — wellness device
Using it safely.
SmartDream is a wellness device for everyday use, not a medical device. Before you start, take a moment to skim the items below.
Important · Product class
This product is not a medical device. It is not intended to diagnose, treat, or prevent any disease.
- CautionAdult supervision
When children and adolescents use the device, an adult must supervise. For overnight use, adjust the cable to a comfortable position and secure the device so it does not move.
- WarningCharging
Do not use while charging. Always disconnect the charger before use.
- CautionSkin care
Do not apply on broken skin, inflammation, acne, or pimples. Wipe the application site with an alcohol pad and let it dry before use.
- WarningMedical contraindications
Users with pacemakers or implanted electronics, pregnant women, and individuals with a history of epilepsy must consult a physician before use.
- WarningAdverse reactions during use
If you experience pain, dizziness, or persistent discomfort during use, stop immediately.
- NoticePatch hygiene
For hygiene and best effect, replace the patch every day.
- NoticeStorage
Store away from moisture. Do not expose to temperatures above 60°C.
Once you've reviewed the items above, follow the four-step procedure in the manual.
Buy and join the community.
Buy or rent on Naver Smart Store. Real user reviews live on the official Naver Cafe.
Frequently asked questions.
Key questions about usage and the science. The full FAQ lives on /faq.
How does SmartDream work?+
A forehead patch delivers a very mild microcurrent. The current acts on brain regions related to the prefrontal cortex, helping support balanced attention regulation, emotional regulation, and executive function. The current is mild — perceived as a faint tingling sensation at most.
How does sleep affect attention?+
When sleep is insufficient, connectivity between the autonomic nervous system and the prefrontal cortex weakens, making behavior control harder and errors more frequent. Quality sleep is the most fundamental asset for learning and emotional regulation in children and adolescents. (Advised by Prof. Kim Kyung-il, Ajou University.)
Is the microcurrent safe?+
Some users may notice a faint tingling sensation, but the current is well below pain threshold and is safe for everyday use. If skin discomfort persists, stop use and consult a physician.
How long do I need to use SmartDream to see results?+
Results vary by individual, but many users notice changes in sleep quality and attention around the two-week mark with consistent use. Effects are maximized when paired with consistent use and improved sleep hygiene.
Are there any precautions for using SmartDream?+
Users with pacemakers or implanted electronic devices, pregnant women, and individuals with a history of epilepsy should consult a physician before use. Do not place patches on skin with cuts or inflammation, and ensure children use the device under adult supervision.