ionMug & Charging Coaster, 12oz. Stainless Steel Self Heating Coffee Mug with Lid, 3.5" x 3.5" x 5"
ionMug & Charging Coaster, 12oz. Stainless Steel Self Heating Coffee Mug with Lid, 3.5" x 3.5" x 5"
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Tzumi

ionMug & Charging Coaster, 12oz. Stainless Steel Self Heating Coffee Mug with Lid, 3.5" x 3.5" x 5"

3,452 ratings
ionMug & Charging Coaster, 12oz. Stainless Steel Self Heating Coffee Mug with Lid, 3.5" x 3.5" x 5"ionMug Charging Coaster 12oz Stainless Steel Self Heating Coffee Mug with Lid 3 5 x 3 5 x 5ionMug Coffee Mug Charging Coffee Mug Warmer Coaster 12oz Stainless Steel Coffee Mug with Lid 3 5 x 3 5 x 5ionMug Charging Coaster 12oz Stainless Steel Self Heating Coffee Mug with Lid 3 5 x 3 5 x 5
Actual ColorBlack

Key item features

  • Temperature Control: Choose from 3 adjustable temperature levels: 135 F, 140 F, or 145 F, with an LED indicator showing the desired level and heating completion.
  • Long-Lasting Heat: Built-in rechargeable battery keeps beverages hot for up to 3 hours, or use the charging coaster to maintain heat all day.
  • Auto Shut-Off: Automatically turns off after 3 hours or when no liquid is detected, ensuring safety and energy efficiency.
  • Durable Materials: Made with 304 stainless steel and ABS material, the ion Mug is easy to clean under running water.
  • Spill-Proof Lid: The anti-spill lid helps keep your hot beverage secure, preventing spills and accidents.
  • Compact Design: Dimensions of 3.5" x 3.5" x 5" and a weight of 1 lb make it a convenient and portable option for hot beverages.
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Specs

Maximum temperature, 145 ºFFeatures, Automatic Shut-OffPower type, BatteryCord length, 6 ftAssembled product weight, 1 lbBrand, Tzumi

About this item

Product details

Coffee, tea, or any hot beverages are best enjoyed at your own leisure. The ionMug & Charging Coaster in black helps you do that by keeping your drinks at the perfect temperature all day from its charging coaster. Once charged, the mug is designed to hold its temperature for up to 3 hours, so no more racing against the heat of your drink and no more turning to the microwave for reheating. It's the perfect size too at 3.5" x 5", and weighing only 1 lb. With multiple temperatures, an auto shut-off feature, a spill-proof warming lid, and more-the ion Mug is your go-to cup for any hot beverage!
  • Drink at your own pace: Features a built-in rechargeable battery that can keep your beverage perfectly hot for up to 3 hours, or leave it on the included charging coaster instead to keep it hot all day.
  • Wash away: Made with 304 stainless steel and ABS material, the ion Mug can easily be cleaned under running water.
  • No worries: The 12oz. ion Mug will turn off automatically after 3 hours, or if no liquid is detected in the mug.
  • The anti-spill lid helps keep your hot beverage in your cup and not on your lap.
  • The right temperature: Choose from 3 adjustable temperature levels: 135° F, 140° F, or 145° F. The LED temperature indicator clearly shows your desired temperature level, as well as when the heating process is complete.
  • Dims - 3.5" x 3.5" x 5", 1 lb
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Maximum temperature

145 ºF

Features

Automatic Shut-Off

Power type

Battery

Cord length

6 ft

Warranty

Warranty information

1-Year Limited Warranty

Warnings

Customer ratings & reviews

4.2 out of 5 stars
stars
3,452 ratings2,712 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars74% (2,546)
  2. 4 stars7% (228)
  3. 3 stars5% (158)
  4. 2 stars3% (103)
  5. 1 star12% (417)

Reviews summary

Pros

  • : Has a stylish and contemporary appearance.
  • : Retains temperature throughout morning use.
  • : The mug maintains beverage temperature for hours when powered.
  • : Simple to operate and manage.

Cons

  • : The mug runs on a single charge for only 30-90 minutes.
  • : The cover detaches and fails to seal when exposed to heat.
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Showing 1-3 of 2,712 reviews

May 19, 2026
Reviewer name: Cheri
Top Reviewer
Item details
Color: Black
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

ok, for those who didn't read the instructions... this cup is amazing, I'm on month two with it, no issues bottom of your cup, hold button until lights flash, choose your temp or whether to put it to sleep... don't forget to do that after your finished... this will keep your drink hot, so hot, you'll need lip balm for the burn if you aren't careful about one hour off charger, then recharge, repeat. my process is simple, fill, drink, repeat. I work up to 12 hours at my office, so do purchase if you are tied to a desk

Helpful?4G9FVQP91KLX624515878
Sep 6, 2026
Reviewer name: Kglow
5 out of 5 stars
5 out of 5 stars review

Warm & Fuzzy

Such a silent night, to behold this triumphant desire. The night sky is a deep breath, as your lungs prove their worth. I find comfort in your shadow, away from the flaws lying under the sun. The warmth hugs my feet, and your neck greets my lips. Questions turn to answers, as feelings turn to daylight. It was then, I was sure- this feeling would be my last.

Review from Tzumi Electronics
Helpful?4G9FVQP91KLX624515878
Jun 8, 2026
Reviewer name: Kenneth
Item details
Color: White
4 out of 5 stars
4 out of 5 stars review

handy self-heating mug

This is a very useful mug. I like that you can use it on the charging base to keep your drink hot or remove it and still keep it hot for 2 to 3 hours. I like that it clearly shows the temperature setting right on the mug. It's nice that it comes with a travel lid to hold in the heat and keep it from spilling. It seems to be well made and has a ceramic lining. It takes a while for it to charge the first time and I recommend recharging it after each use. It works better at keeping hot liquids hot. I tried heating tap water to 135° it took 20 minutes or more to reach temperature.

Helpful?4G9FVQP91KLX624515878
Current price is $39.98
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