COMFYTEMP · K6181020 HEAT + TENS · 2-IN-1
The TENS unit with warmth built in

Stimulation,
with warmth

Two systems, one pad. K6181020 pairs adjustable TENS stimulation with gentle heat in the same electrode — 24 modes, 40 intensity levels and 3 heat settings, on two independent channels you control from a large, readable display.

Shop K6181020 → Free US shipping · 30-day returns · FSA/HSA eligible
24 + 40
Modes & intensity levels
3 heat levels
Set warmth alongside stimulation
2500 mAh
USB-C rechargeable battery
Comfytemp K6181020 white TENS unit with heat: black round display, blue power button, red heat button and four reusable electrode pads
What we kept hearing

Four things people wanted from a session

Before we built K6181020, we looked at how people actually use a stimulation unit at home. The same four wishes came up again and again.

Warmth in the same session
A pad that stimulates is common. A pad that also warms the same spot is much less so.
Controls you can read
Tiny labels and small buttons make a simple setting change take longer than it should.
Two areas, one session
A shoulder and a knee at the same time should not mean two separate setups.
Pads that last
When the skin-contact gel wears out, it makes more sense to replace just that layer.
Why we combined them

From one sensation to two, in one pad

A carbon-film heating layer sits inside the electrode itself, so warmth and stimulation arrive at the same place at the same time — each with its own controls.

A basic stimulation unit
  • Stimulation only, from a single system
  • One channel for one area at a time
  • Small displays and closely spaced buttons
  • Pads replaced as a whole when the gel wears
K6181020 · Heat + TENS
  • 3 heat levels alongside 24 modes and 40 intensities
  • Two independent channels, set separately
  • Large clear display, oversized buttons, one-touch stop
  • Four-layer pad — only the hydrogel layer is replaced
Comfytemp 2-in-1 Heat + TENS electrode pad diagram showing soothing warmth and gentle stimulation at the same area

Two systems, one pad

A carbon-film heating layer is built into the electrode, so warmth and stimulation reach the same spot together. Heat has three levels of its own — add it, change it or leave it off.

Hands holding the white Comfytemp K6181020 TENS unit showing its large clear display, oversized buttons and one-touch stop

A screen you can actually read

A big clear display and oversized buttons keep mode, intensity, heat level and remaining time in plain sight. A dedicated one-touch stop ends the session instantly.

Exploded diagram of the reusable Comfytemp electrode pad showing the comfort foam, carbon-film heating, protective backing and replaceable hydrogel layers

Replace the gel, keep the pad

Four layers do four jobs. When the skin-contact hydrogel wears out, that is the part you replace — the foam, heating film and backing stay in service.

What is inside

The details, plainly stated

1
24 modes · 40 intensity levels
A wide range of steps, so small adjustments are possible rather than big jumps.
2
3 heat settings
Warmth is controlled on its own button and can be added to or removed from a session.
3
Independent dual channels
Two areas can be set separately — a shoulder and a knee, for example, at their own levels.
4
2500 mAh USB-C rechargeable
Rechargeable rather than disposable, with the battery level shown on the display.
5
Large display & oversized buttons
Mode, intensity, heat and time are easy to read. One-touch stop ends a session instantly.
6
Four-layer reusable electrode pad
The skin-contact hydrogel is a replaceable layer; the rest of the pad is built to be kept.
Layer 01
Comfort foam support
A soft body that lets the pad sit flat against the skin.
Layer 02
Carbon-film heating
The heat source, built into the pad rather than added on top.
Layer 03
Protective backing
Holds the layers together and keeps them in shape through repeated use.
Layer 04
Replaceable hydrogel
The skin-contact surface — the one layer designed to be swapped.

This page describes product features and settings, not medical outcomes. Follow the placement and usage guidance in the user manual and on the product page.

A day with K6181020

From the morning desk to the evening sofa

One unit, a few different settings. Here is a suggested routine showing how the two systems and the two channels can be combined — adjust it to whatever suits your day.

01
08:30
Before the desk
Low intensity · Heat 1
A gentle start with warmth on the lowest setting, on a single channel.
02
12:30
Lunch break
Dual channel · Heat 2
Two areas at once, each with its own level, while you take a proper break.
03
16:00
Afternoon reset
Medium intensity · Heat off
Stimulation on its own. Heat is a separate button, so it stays out of this session.
04
21:00
On the sofa
Low intensity · Heat 1
A quieter setting to finish the day; one-touch stop ends it whenever you are ready.

Timings above are illustrative. Follow the usage guidance in the user manual and on the product page.

Why we built it this way

Designed around how you use it

Three decisions behind K6181020, and the thinking behind each one.

Why put heat inside the electrode pad?
We wanted warmth and stimulation to arrive at the same place, at the same time. Building a carbon-film heating layer into the pad itself makes that possible, with its own three levels so you decide how much warmth belongs in each session.
Two systems, one surface
Why 24 modes and 40 intensity levels?
Different areas, different days and different people call for very different settings. A wide range of small steps lets you settle on the level that feels right and change it by one increment at a time, rather than jumping between a handful of presets.
Fine control, your way
Why a replaceable hydrogel layer?
The skin-contact gel is the part that wears with use; the foam, heating film and backing are not. Separating them into four layers means one small replacement keeps the rest of the pad in service, which is a better long-term design for something used every day.
Built to be kept
Why Comfytemp

What stands behind it

Not claims about what our products do to your body. Just the things we can prove: how long we have been here, who uses us, and what we do if something goes wrong.

Building since 2020
Six product families across heating, red light, TENS, air compression and cooling. One design rule throughout.
500,000+ households
Devices used in living rooms, dorm rooms and offices — by people, not in clinics.
1-year warranty
365 days against manufacturing defects. If a unit fails we replace it, we do not ask you to repair it.
Documents on request
Product documents and compliance certificates are available from our support team on request.
PressFeature placements in home & lifestyle outlets Creators2,000+ collaborators since 2020 CommunityPhoto wall and customer stories
After you order

What happens next, stated plainly

365 days
Warranty
Covered against manufacturing defects. Replacement, not repair.
30 days
Returns
Not for you? Send it back within 30 days, no explanation required.
1–3 days
US shipping
Ships from US warehouses. Tracking the same day it leaves.
1 day
Support reply
A person, within one business day. Not a bot, not a forum.

Warranty and returns follow the terms published on our policy pages. Nothing on this page is a promise about how a product will affect your body — it is a promise about how we will stand behind you if something goes wrong.

Questions, answered

Before you decide

Is this a heating pad or a TENS unit?
Both, in one device. K6181020 combines adjustable TENS stimulation with gentle heat, and the heating layer sits inside the electrode pad so the two arrive at the same area. Each has its own controls.
How many modes, levels and heat settings are there?
24 stimulation modes, 40 intensity levels and 3 heat settings. Heat is set on its own button, so it can be added to a session or left out entirely.
What are the dual channels for?
Two independent channels can be set separately, so two areas — a shoulder and a knee, for example — can be used in the same session at their own intensity levels.
Can I use heat and stimulation at the same time?
Yes. They are separate systems with separate controls, and the official product imagery shows them working together in one pad. You can also run stimulation with heat off.
Do I replace the whole pad when the gel wears out?
The pad has four layers: a comfort foam support layer, a carbon-film heating layer, a protective backing layer and a replaceable hydrogel layer. Only the skin-contact hydrogel is designed to be swapped; check the product page for current replacement options.
How is it powered?
A built-in 2500 mAh rechargeable battery, charged over USB-C. The battery level is shown on the display, so you can see where you stand before starting a session.
Is it straightforward for someone new to this kind of device?
That was a design priority. The unit has a large clear display, oversized buttons and a dedicated one-touch stop, so settings are visible and a session can be ended immediately.
Is there a one-touch stop?
Yes — a dedicated STOP button on the unit ends the session with a single press.
Does it need an app or a subscription?
Neither. Mode, intensity, heat and timer are all controlled by the buttons on the device — no pairing, no account, nothing recurring to pay for.
Is it FSA or HSA eligible?
Yes — the K6181020 listing is FSA/HSA eligible. Your plan's own rules apply to how it is submitted.
Where are the pads shown being used?
Our product imagery shows the pads on the back, shoulders, arms and knees. Follow the placement and usage guidance in the user manual for your own setup.
Where can I find the full box contents?
The complete packing list, current availability and any included accessories are listed on the product page, which is kept up to date as the kit changes.
What if it is not for me?
Send it back within 30 days, no explanation required. Manufacturing defects are covered for 365 days, and shipping within the US is free.
Does this page make medical claims?
No. Everything here describes the product's features, settings and design. For usage guidance, follow the user manual and the product page.
Ready when you are

Two systems,
one comfortable session

Full specifications, what ships in the box and current availability are on the product page. This page was only ever meant to explain why we made it.

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Free US shipping · 30-day returns · 1-year warranty