Warmbob Duo Reusable Handwarmers | 12-Hour Rechargeable Heat

(4.9 stars) • 234 reviews

Duo Handwarmers

A pair of snap-together, rechargeable warmers that heat up in seconds and
Keep both your hands toasty for hours, anytime you’re out in the cold.

90 Day Warranty

Delivery in 5–10 Days

Nutritional info

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Handwarmer Color

Save 10% for 2 sets and above!

$49.99

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Warmth That Works When You Need It

Whether you're heading to work, watching a game, walking the dog, or traveling, cold hands shouldn't slow you down. Warmbob Duo heats up in about 60 seconds and stays warm for hours—giving you the comfort and control to focus on what matters.

Simple to use:

Turn on— Press the button to select your heat level
Warm up— Slips into your pocket, gloves, or hand muff in ~60 seconds
Go— Get back to your day with warm, comfortable hands

Easy to Maintain

Cleaning the handwarmers:

Pop off the removable silicone shells
Soak in warm soapy water for 5 minutes
Rinse, dry completely
Snap back on

Charging:

Plug in via USB-C. Fully charges in 2–3 hours. Battery lasts 300–500 charge cycles.

WARRANTY & SUPPORT

3-Month Warranty

If something goes wrong, we'll make it right. Real humans on our support team.

The Warmbob Promise

If these handwarmers don't clearly help, tell us. We'll work with you to find a solution.

USB charging cable
User manual
Warranty card

Heat Settings (3 levels): 115°F / 130°F / 140°F (45°C / 55°C / 60°C)
Runtime: Up to 12 hours at 115°F
Battery: Built-in lithium battery, 3000 mAh
Charging Port: USB-C (Type-C)
Charging Input: 5V / 2A
Charging Current: 800 mA
Rated Power: 6W
Water Resistance Rating: IPX4/5
Materials: ABS + PC + Silicone + Electronic Components
Dimensions Pair (two units together): 3.94 × 2.76 × 1.18 in (10 × 7 × 3 cm) Single unit: 3.94 × 1.38 × 1.18 in (10 × 3.5 × 3 cm)

Worry-free warmth

Infrared warmth up to 58 °C

Worry-free warmth

Warmbob Duo Handwarmers

The perfect magnetic handwarmers for your perfect winter moment

3 Modes- 115°F, 130°F , 140°F

115°F for gentle warmth, 130°F for everyday cozy, 140°F when it’s seriously cold.

Up to 12 Hours of runtime

Stays on longer than the cold. Designed to last an entire outing, not just the first 20 minutes in the cold.

Travel- and everyday-friendly

Compact, TSA-approved and pocket-sized, it fits easily into your coat, courtside bag, or carry-on for daily use and trips.

Silicone Case- Anti-slip and anti-drop

The outer silicone case adds bump protection and a soft, non-slip grip that’s comfortable even when your hands are cold or sweaty.

Not just another handwarmer

Engineered for Real Warmth, Made for Real Life

WARMBOB

Others

Up to 12 Hours Runtime

Heats to 140°F in ~30s

Soft-Touch Silicone Case

UL-Listed Battery

Smart switch

Perfect for Sports

Our reviews

For pickleball couples

"My wife and I both play pickleball and we each got a pair. Best investment we've made for our game this winter."

— Kelly B.

Verified Review

Perfect on the go

“Fits right in my hand and heats fast—perfect for running errands or warming up between games.”

— Brooke S.

Verified Review

Cold walks, solved

“Morning dog walks used to freeze my fingers—now I just snap these together and my hands stay warm the whole time.”

— Jenna P.

Verified Review

Perfect for pickleball

"I was using them between games to keep my hands warm and everyone noticed how much better I was playing."

— Carlos G.

Verified Review

Answers to your warmth questions

Warmbob Duo has 3 heat levels with tested runtimes (ambient ~50–60°F, normal use):

115°F — up to ~12 hours
130°F — up to ~8.5 hours
140°F — up to ~7 hours

Actual time varies with level, wind, and how often you turn it on/off.

Yes. The anti-slip silicone case is designed to stay grippy even when hands are damp, also protecting you. Use with dry hands for safety and best performance.

No. It’s splash-resistant (IPX4/5) for light spray or drips, but not for heavy rain, submersion, or washing. Use with dry hands and keep ports dry.

It’s a low-voltage device with safety protections. Use only with dry hands, don’t use if the case/ports are damaged or wet, and follow the care guide.

Yes—Our products are TSA carry-on OK. Pack it in your carry-on (not checked bags), turn it off, and follow airline/airport staff instructions.

The bump-protective silicone shell helps with everyday knocks. If it takes a hard fall or shows damage, stop using it and contact support.

Power off and unplug the device.
Remove the silicone protective covers. You can soak the covers in warm water, then dry completely before re-attaching.
Do not submerge the device body. Wipe the main unit with a slightly damp, lint-free cloth; keep ports dry; avoid solvents or alcohol.
Let everything dry fully before use.

Yes—3-month warranty against manufacturing defects. If something’s off, reach out to our support e-mail at help@warmbob.com and we’ll help.

Warmbob is rechargeable, fast, has levels you control, an LCD battery indicator, and no messy waste. Over time, it’s simpler and costs less than throwaways. It’s way better for the environment as well, reusable and not disposable.

We’re exclusively available here on warmbob.com. We are currently not selling in physical stores or platforms.

Yes. It’s great for cool mornings, travel days, indoor rinks, AC-cold offices, camping, commutes, and bleachers. After winter, you can also use Warmbob Duo as a power bank to top up your phone or earbuds (built-in ~3000 mAh battery). Use with dry hands, keep ports dry, and you’re good year-round.

The case is a soft-touch silicone most people tolerate well, but it’s not certified hypoallergenic. If you have silicone sensitivities, discontinue use and consult your clinician.