Sens.U’s period cramp relief device is the first device of its kind, combining TENS (Transcutaneous Electrical Nerve Stimulation) and far-infrared heat technologies to deliver instantaneous, targeted symptomatic relief from menstrual pain. It does this by applying a gentle electrical current along with emitting far infrared light which causes the muscles in the uterine area to relax, resulting in a calming analgesic effect.

TENS, short for Transcutaneous Electrical Nerve Stimulation, is a technology that helps with pain relief.

It sends tiny electrical currents between two special pads (Wings) which are placed on your skin, over the nerve roots responsible for providing sensory feedback from your uterus.

This blocks pain signals from reaching your brain, making the muscles in your belly area relax, resulting in a nice soothing feeling.

You may have seen viral social media videos of people talking about infrared light therapy and the benefits it has on skin rejuvenation, athlete recovery and pain management.

Our device uses the same technology.

Sens.U's Wings delivers targeted far infrared light which is absorbed as heat deep into your body’s soft tissue.

This helps to bring in more oxygen, reduce inflammation and relax your menstrual muscles.

That’s a great question.

Technically speaking, our period pain relief device uses the same technologies available separately in other TENS and heating machines, BUT there are a few key differences that we believe make our device the best fit for use against period pain.

1. TENS & Heat in One. Our bodies are unique, so how we feel can vary. That’s why we created a special, first of its kind device that combines both TENS and soothing graphene heat. If you don’t enjoy the TENS sensation, no problem – just switch to the heating function. If you’d rather not have heat on your belly, you can use TENS mode by itself. And if you like both, you can enjoy them simultaneously. It’s all about what feels best for you!
2. Discreet Design. Unlike those bulky TENS devices you see in the hospital or physio that resemble large, blocky mobile phones from the 80s, our device is slim and sleek. It sits flush against your skin and is controlled wirelessly with no messy cables to deal with. This makes it practically invisible and incredibly easy to wear whilst you’re out and about. We deliberately designed it this way to empower you to do all the things you enjoy without any hassle or discomfort!

Absolutely. We created our period cramp relief device to be suitable for individuals of all body shapes and sizes.

If you don’t absolutely love your device, return and get a full refund within 30 days. No questions asked.

For full details please refer to our Return Policy here.

Our period pain relief device is a non-invasive, drug-free pain management solution that has been used for decades in medical and recreational settings. The risk of adverse side effects is considered low.

Mild skin irritation may occur in response to electrical stimulation. This is a normal reaction, particularly if you have sensitive skin.

The Wing Gels included with your device are medical grade. In the rare instance you may be allergic to the gels, please be aware of the following ingredients: Crosslinked acrylic resin, Polyhydric alcohol, Electrolytic salt, Additives (stabiliser etc.), De-ionised water.

If skin irritation persists or worsens, we advise that you stop using our device and consult your doctor. Our device should only be used on healthy, intact skin.

The long-term effects of TENS stimulation and infrared light therapy are unknown. However, TENS machines and infrared light therapy have been around since the 1980s.

Our period pain relief device can be used as much as you like. If you do feel discomfort or itchiness, we suggest taking small breaks or placing our device in different areas. Everybody is different, so see how you feel!

Of course! Feel free to play around with the different pulse sensations and pick the one that feels the most comfortable to you and provides the best pain relief.

Absolutely. Our device is designed to provide relief across the lower stomach, lower back, shoulder and leg.

Don’t worry, our device doesn’t hurt at all. It feels like a gentle pulsing or tingling sensation. You can also adjust the intensity using the up/down buttons on the Controller. The best comparison we’ve heard about the pulses is that it feels like a phone buzzing in your pocket!

We do not advise the use of our period pain relief device to anyone who is pregnant. Store it in a safe place in the included carry bag and save it for later!

Our device has no effect on fertility and is safe to use whilst trying to conceive. Our period pain relief device is simply a TENS + heating machine. You have nothing to worry about.

We do not advise the use of our period pain relief device on the belly or lower back to anyone who is using a copper IUD.

However, you can still use our device on other areas of your body! If you are using a synthetic IUD, our device is absolutely safe to use! It can also help with cramps associated with IUDs.

However, if you’re unsure, we always recommend checking with your doctor to be certain.

Not at all! Our period cramp relief device is suitable for all age groups.

Although higher TENS settings may be too intense for children under the age of 8.

If you have any particular health concerns, it’s a good idea to consult your doctor before using it.

Our period pain relief device comes with an 18-month warranty. If, for any reason, your device stops working or breaks, just shoot us an email at hi@sensu.au, and we'll help you troubleshoot the issue and send you a replacement ASAP. Please keep in mind that our 18-month warranty is valid as long as the product hasn't been damaged due to misuse, accidents, neglect, or any unauthorised modifications.

Place your order before 3pm AEDT and we will dispatch your order on the same day. How good.

Orders placed after 3pm will be dispatched the next business day.

For more information on shipping and delivery timeframes, please visit our website here.

3-5 business days for free standard shipping and 1-2 business days for express shipping.

For full details including times for regional and remote areas, please refer to our shipping policy here.

Unfortunately, we are not able to facilitate customers picking up their orders directly.

We offer a 100% happiness guarantee, meaning if you don’t absolutely love your device, return and get a full refund within 30 days. No questions asked.

For full details please refer to our Return Policy here.

We process all refunds within five (5) business days of returned packages arriving back at our warehouse.

From there, it can take up to ten (10) business days for your refund to be credited to your original form of payment.

Yes! To use Afterpay, just select it at checkout and pay in 4 interest-free instalments. Instant relief now, pay later.

Yes! To use Afterpay, just select it at checkout and pay in 4 interest-free instalments. Instant relief now, pay later.

• Sensate TENS Unit
• Controller
• Wings (to deliver instant pain relief)
• 2 Sets of Wing Gels
• Wing Plate (for storing Wings)
• Carry Bag (for storing)
• USB Charging Cable
• Microfibre Cloth (for cleaning)

When using your period pain relief device for the first time you’ll have to pair the Sensate with the Remote Control. To do this:

1. Hold Sensate on/off switch for 6 seconds until the Sensate indicator light flashes white
2. Hold Controller on/off switch for 6 seconds until treatment area switch light flashes white
3. Wait 1 second until both white lights stop flashing To turn your period pain relief device on every time after that, hold down the power button on the Controller for 3 seconds until the white light turns on. Now you can adjust the intensity of the pulses and temperature of the heat until you find your desired level of pain relief. There are 15 levels of TENS intensity and 3 temperature levels in total.

Our device can be used to deliver relief across five areas:

1. The belly;
2. The waist;
3. The lower back;
4. The shoulder; and
5. The leg

When it comes to alleviating period pain, many users have reported the most effective relief by placing the device lower down. However, everyone’s unique, so this may not be the perfect place for you, and that’s absolutely fine. There are several nerves that supply the uterine area that may be responsible for your pain, so we suggest moving the device around a bit until you find the right spot for you.

Always remember to only apply the device to normal, unbroken, clean and healthy skin. Never apply stimulation to open wounds, rashes, inflamed or infected skin areas

WARNING: While it’s tempting to use our period pain relief device on all areas of your body, using it on your neck, chest, thorax and/or face can be dangerous.

A fully charged battery should last for a maximum of 12 hours on the lowest TENS setting and 2.5 hours on the lowest heat setting. You’ll know when your device is fully charged when the Sensate indicator light turns blue.

If you choose a higher TENS intensity, the battery won’t last as long, but you should still get about 8 hours of pain relief. Similarly, if you choose a higher heat setting, the battery won’t last as long, but you should still get about 1 hour of pain relief.

The Sensate indicator light will flash blue when the battery is running low. Once it’s out of juice, charge your period pain relief device using the USB cable provided until the blue light stops flashing – this should take approximately 2 hours

You can use your Wing Gels multiple times until it loses its adhesiveness. This usually happens after 8-10 uses.

Need to purchase more Wing Gels? No problem! You can do so right here.

1. Make sure the device is switched off.
2. Remove the old Wing Gels from the Wings by rubbing and gently rolling the used gel off the Wings. Do not excessively bend the Wings.
3. Wipe away any remaining excess gel with a slightly damp cloth and wipe completely dry. Do not use any harsh cleaning agents.
4. Prepare your new Wing Gels by removing the blue protective film first.
5. Then place the exposed sticky side of the Wing Gel onto the Wing. Press firmly to secure.
6. Lightly squeeze any large air bubbles located between Wing Gels and Wings outward as if applying a screen protector.
7. Remove the clear protective film and place on your skin or the Wing Plate

Need to purchase more Wing Gels? No problem! You can do so right here.

After using the device, be sure to reattach the Wings onto the Wing Plate provided to preserve the stickiness of the Wing Gels.

You can also store your device in the pouch provided to prevent sunlight damage or dust build up.

Finally, we recommend cleaning your device once a month using a damp cloth with a gentle soap and water solution.

Try the following fixes:

1. Have you fully charged your device until the blue light is showing before using it? Try recharging again for a couple hours – make sure the USB charger is properly connected to a power source.
2. Are both Wings attached properly?

If your period pain relief device still isn’t working, don’t worry. You’re covered under our 18-month warranty. Just email us at hi@sensu.au and we’ll organise a replacement for you.

Try the following fixes:

1. Double check that the white light is on. If it’s not on, your device is not switched on.
2. Are both wings attached to your body? Our device is electrical which means it needs a closed/complete circuit to work.
3. Try repositioning the device to see if it’s a placement issue.
4. Try increasing the intensity. Everyone and every part of the body is different, so sensation from one person or one body part may be different from another.
5. Still nothing? Email us at hi@sensu.au and we’ll process a replacement for you.

Try the following fixes:

1. Double check that the white light is on. If it’s not on, your device is not switched on.
2. Try recharging the device. The heating function requires more battery energy than TENS so your device may have enough juice for TENS but not for heat.
3. Are both wings attached to your body? Our device is electrical which means it needs a closed/complete circuit to work.
4. Try repositioning the device to see if it’s a placement issue.
5. Try increasing the intensity. Everyone and every part of the body is different, so sensation from one person or one body part may be different from another.
6. Still nothing? Email us at hi@sensu.au and we’ll process a replacement for you.