• Free tracked UK delivery
  • 100-day money-back guarantee
  • Dispatched in 1–2 working days

How it works

Kalmi is a cordless heat and massage belt you can wear through your day. No kettle, no refills, no cable to the wall. Here's how it works.

1. Wrap

Fasten the soft elastic strap around your lower abdomen or your lower back and slide it through the buckle until it feels snug but comfortable. It's slim enough to wear under a loose jumper or top.

2. Choose

Switch it on, then choose your warmth and massage mode using the buttons on the top edge. There are five heat settings, reaching up to 60°C at the top level, and five gentle massage modes. You can change them any time. We recommend starting low and building up to what feels right.

3. Carry on

That's it. Make a cup of tea, answer emails, head out the door. Kalmi comes with you.

Charging

Kalmi charges with the USB-C cable in the box, using any standard USB plug or laptop port. A full charge lasts up to around 8 hours depending on the settings you use. Higher heat and stronger massage use more battery. Please don't wear it while it's charging.

What's in the box

  • Kalmi Heat & Massage Belt
  • USB-C charging cable
  • User guide

Safe use

  • Read the user guide before first use.
  • Wear it over a thin layer of clothing rather than directly against bare skin.
  • Don't use it while sleeping, or on broken, numb or irritated skin.
  • Check your skin now and then, and stop if anything feels too hot or uncomfortable.
  • If you're pregnant, have a medical condition, reduced sensation or an implanted device such as a pacemaker, check with your GP before use.

Kalmi is designed for everyday comfort. It is not a medical device and isn't intended to diagnose, treat or cure any condition.

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