Twenty minutes in the chair
You stand up halfway through the call and hope it reads as stretching.
Bestseller
Physiotherapist recommended
Arca Wireless TENS
When pain starts, your day doesn’t have to stop. ARCA uses wireless TENS to take the edge off everyday muscle aches.
- Keep doing what matters—use ARCA while you work, relax or spend time with family.
- Stay in control of your comfort—adjust the intensity from the controller in your hand.
- Less hassle when you’re already aching—no tangled leads or phone app to figure out
THIS WEEK: GET TWO EXTRA PADS FREE
30-day at-home trial · Free UK delivery
“This has become part of my daily routine. I can work and drive comfortably again.”
Frequently asked
Will ARCA help with my pain?
ARCA is designed to help take the edge off everyday muscular aches, including lower-back discomfort. It uses controlled TENS pulses to stimulate nerves and make pain feel less noticeable. Results vary, so the 30-day at-home trial gives you time to see whether it helps you.
How quickly could I notice a difference?
Relief can begin while you’re using TENS, and some people feel the benefit continuing afterwards. ARCA sessions last 15 minutes.
What does it feel like—does it hurt?
You’ll feel a tingling sensation beneath the pad. Start on a low setting and gradually increase it until it feels strong but comfortable. You control the intensity using the handheld controller. It should not hurt—turn the intensity down if it feels uncomfortable.
Is it easy to use while getting on with my day?
Yes. Follow the placement guide, attach the pad and start a 15-minute session. You can adjust the intensity from the handheld controller, with no tangled leads or phone app to manage. Use it during light everyday activities, such as working at your desk or relaxing with family.
What if I try it and it doesn’t help?
You have 30 days from delivery to try ARCA at home. If it isn’t right for you, email us within that period to request a return.
Arca
£89
Life with ARCA, in their words
How customers use ARCA, what they notice and how it fits into their day.
Neck tension gone
I used Arca in the evenings, and the tightness has now gone.
Awake again at three
Turning over becomes a decision you make slowly, and then lie still after.
Sitting through the meeting
Stays under your clothes. Nobody sees it, nobody asks.
After a long journey
Use Arca once you have arrived and can sit comfortably without distractions.
How it works
Relief you can feel today
Arca sends small electrical pulses through your skin. They block pain signals and help your body release its own natural painkillers. It's drug-free, and it works while you're wearing it — so you can sit through a call, drive home, or get through dinner without it taking over.
- Drug-free reliefno pills, no side effects
- Dual-zone coveragetreat two areas at once
- Stays on while you movesit, drive, or get through dinner
Simple to use
One button. No app. No fuss.
Press the button. Pick your intensity. Start your session. That's it — no app, no pairing, nothing to set up. Sixteen intensity levels and six modes mean you can dial it in exactly how you like it. It's rechargeable, weighs just 98g, and fits in a bag or a drawer — built for daily life.
- One buttonno app, no setup
- 16 intensity levels, 6 modestreats two areas at once
- Rechargeable, 98gsmall enough to take anywhere
Three steps, then forget about it
Place
Put a pad on each area you want to treat — neck, lower back, or another sore spot.
Press
Turn Arca on and choose your treatment. Your 15-minute session starts with one press.
Carry on
That's it. Arca is wireless, so you can get on with your day while your session runs.
Real experiences
What people say
Early customer feedback. Filter by the pain context that sounds most like yours.
★★★★★
Honestly didn't expect it to work this fast
By 3pm I used to be reaching for the ibuprofen. I've had Arca for nine weeks and I haven't touched the pill bottle once. That's the part I didn't expect.
S
★★★★★
Finally off the ibuprofen
Three weeks in and I haven't touched painkillers once. Wear it at my desk every morning. My neck and back feel looser than they have in years.
M
★★★★★
Six months of leg pain, gone in two weeks
Six months of sciatic pain down my right leg. I'd tried everything. The first ten-minute session, I cried. Not because it hurt — because something finally helped.
P
★★★★★
Recovery from long runs is actually faster
I run 60km a week and my IT-band has been my whole personality for two years. Ten minutes on mode 4 after a long run is non-negotiable now. Sleep is better. Recovery is faster.
M
★★★★★
Nobody at work has any idea
Wore it through three client meetings yesterday. Neck tension that used to hit by 2pm just… didn't. Can't believe it took me this long to try TENS.
C
★★★★★
Five months post-section and finally sleeping
Five months post-section and my lower back was wrecked. My GP suggested TENS. Arca was the only one that felt designed for an actual body, not a science experiment.
J
★★★★★
The only one that does both at once
Neck and lower back both flare up together. Every other device made me choose. Arca doesn't. Three months of daily use and still going strong.
D
★★★★★
Lives in the glovebox of my van
I drive 40,000 miles a year for work. Lorry-driver shoulders. I keep Arca in the glovebox now. Twenty minutes at a service station and the rest of the day is bearable.
D
Showing8stories
The evidence
381
Randomised controlled trials reviewed
The largest systematic review of TENS for adult pain.
24,532
Participants included
Across the 381 randomised controlled trials.
78%
Pain-intensity difference
Lower pain intensity with TENS than placebo during or immediately after treatment.
21
RCTs in a knee-OA review
A 2026 review found significant improvements in pain, function and knee muscle strength.
Questions people ask
Will this actually work for me?
TENS does not feel or work the same for everyone. It may temporarily reduce pain for some people during or immediately after a session. ARCA's 30-day at-home trial gives you time to test it in your own routine.
What does TENS feel like—and will it hurt?
Most people describe a steady tingling, tapping or pulsing beneath the pad. Start on the lowest level and increase it until the feeling is strong but comfortable. It should never hurt—if it does, turn the intensity down or stop the session.
How is ARCA different from the TENS machine I already tried?
ARCA uses familiar TENS stimulation. The practical difference is how it is delivered: wireless pads, a separate controller in your hand and no phone app. You can adjust a session without untangling leads or reaching for buttons attached to the sore area.
Can I adjust it when the pad is on my back?
Yes. The controls stay in your hand, so you can change the intensity without twisting, reaching behind you or trying to see buttons on the pad. No phone pairing or app is required.
Can I carry on with my day while using it?
ARCA is wireless and can sit beneath clothing, so you can use it during desk work, while relaxing or during light everyday tasks. Do not use TENS while driving, sleeping, bathing, swimming or operating machinery.
Can I use both pads at the same time?
Yes. Both ARCA pads can run during the same session, so you can place them on two suitable muscular areas when needed. Always follow the placement instructions supplied with the device.
Where should I place the pads?
Place the pads on clean, dry skin over a fleshy muscular area around the discomfort, such as the lower back, shoulders, arms or legs. Do not place them directly over bony areas such as the kneecap, or on the head, front or sides of the neck, chest, broken skin or irritated skin.
Will the pads stay attached?
For the best hold, apply each pad to clean, completely dry skin with no lotion or oil, then press it down firmly. Replace the protective film after use and store the pads in the case. Adhesion gradually reduces with use and varies by skin preparation and storage.
How long do the pads last, and what do replacements cost?
Each pad can last for around 30 uses when it is applied to clean, dry skin and stored correctly. Actual pad life varies. A replacement pair costs £9 as a one-off purchase, with no subscription.
Why is ARCA £89 when cheaper TENS machines cost less?
The £89 price covers ARCA's wireless format, handheld controller, carry case and four pads with the current offer. There is no app or subscription, and ARCA includes free UK delivery and a 12-month warranty.
What if ARCA does not work for me?
You can test ARCA at home and request a return within 30 days of delivery. The device must be returned in its original packaging. Opened two-pad sets are deducted at £9 each, and customers normally pay return postage. Please read the returns policy for the full terms.
Who should not use ARCA?
Do not use ARCA if you have a pacemaker or another implanted electronic device. If you are pregnant, have epilepsy or are unsure whether TENS is suitable for your condition, ask a qualified healthcare professional before use and follow the supplied instructions.