Frequently Asked Questions
Everything you need to know before — and after — you strap in.
How long should I use it per session?
Most people run 15–30 minutes per session. Start on low if it's your first time and work up from there.
Can I use it every day?
Yes — it's built for daily use, that's the point. Consistency is what makes a heat routine actually work.
Does it work on either knee?
Yes, it's a universal fit designed to work on either leg.
What's covered under warranty?
Every EMBER brace ships with a 12-month warranty against defects in materials and workmanship — no fine print. If it stops heating properly or the unit fails under normal use, we'll repair or replace it.
What if it doesn't help?
You've got 30 days to return it, and if it shows up late, our $1-back guarantee kicks in automatically. See Shipping & Returns.
Does it need to stay plugged in while I use it?
Yes — EMBER runs on wall power, not a battery, so it stays plugged in for the whole session. That means steady, consistent heat with nothing to charge, but you'll want to be within reach of an outlet.
How many heat settings does it have?
Three settings, ranging from 104°F to 149°F, so you can start low and work up to what feels right for your knee.
What size should I order?
EMBER is one size with an adjustable band, so it fits either knee comfortably regardless of leg size.
What's it made of?
A soft, stretchable wrap made from OK Fabric and SBR composite, with a slim heating element built in — not stiff or bulky under clothing.
Can I walk around while wearing it?
Since it plugs into the wall, EMBER is built for stationary use — sitting, resting, working at a desk — rather than walking around. Stay within reach of an outlet while it's on.