Ships from our DE warehouse – no customs, 1–2 daysFree shipping from EUR 50Easy returnsSupport 7 days a week
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LIINI® 4.0 PRO Bottle Warmer, Beige, IP66
LIINI 4.0 PRO Bottle Warmer
LIINI 4.0 Bottle Warmer Beige with Battery
LIINI 4.0 Beige Bottle Warmer
LIINI 4.0 Heating Plate Beige
LIINI 4.0 Bottle Warmer Beige with Battery for on the go
LIINI Bottle Warmer Beige 4.0
LIINI Bottle Warmer Beige PRO 4.0
LIINI 4.0 Bottle Warmer Beige with Battery with John
LIINI 4.0 Bottle Warmer Charging Socket Water Protection
LIINI bottle warmer battery beige
LIINI 4.0 Charging Socket Beige with Cover
LIINI beige bottle warmer 4.0 PRO
LIINI 4.0 beige with NUK plastic bottle

Bestseller! Over 100,000 families use LIINI

LIINI® 4.0 PRO Bottle Warmer, Beige, IP66

💦IP66 certified: Protection against dust and water jets from all directions

🔨Most robust LIINI® of all time for permanent and safe support in your everyday life

🦠Resealable lid for maximum hygiene

🍼Ready to drink in a few minutes (4 levels: 37°C / 40°C / 45°C / 50°C)

📦 Free shipping from CH or EU warehouse (no customs costs)

📞 Premium Support: We’re here for you Monday through Sunday

Swiss Company: We Strive for the Highest Quality and Safety

99.99incl. VAT

Colour: Beige
Choose your set – save with a bundle
Goes well with it – added on top of your choice
Not sure if your bottle fits?

Currently sold out – get notified or choose another colour

DHLShipped with DHL – no customs fees

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Bought over 100,000 times · most recently today
Ships from our German warehouse, no customsFree shipping from EUR 50Easy returnsSupport 7 days a week
Does it fit your baby bottle?

Without an adapter: Philips Avent, Elodie, Chicco Perfect 5 & Original Touch, Pigeon (wide-neck), Dodie, Combi, Spectra, Richell.

With LIINI adapters: MAM, NUK, Medela, BIBS, Dr. Brown's, Lansinoh, Tommee Tippee, Twistshake, babylove, NIP – find adapters here.

Can't find your brand? Contact us.

Here's how it works
  1. Fill the baby bottle with water and screw the cap on
  2. Select temperature: 37 / 40 / 45 / 50 °C (accurate to ±2 °C)
  3. LIINI heats up automatically and maintains the temperature

Charges via USB-C; fully charged in 90 minutes with the 45 W fast-charging adapter.

Technical Specifications & Package Contents
  • Battery: 15,000 mAh
  • Weight: 410 g · Protection rating: IP66
  • Certified: CE, FCC, MSDS, RoHS, UN 38.3 · BPA-free
  • What's Included: Bottle warmer, USB-C cable (150 cm), sealing ring
Cleaning & Safety
  • Do not submerge in water · Use only the LIINI cable
  • Heating element gets hot—do not touch
  • Disinfect before use · Not a toy

Notes (PDF)

Shipping & Returns

Shipped from our German warehouse via DHL—100% duty-free, delivered to you in 1–2 business days. Free shipping on orders of EUR 50.00 or more. Hassle-free returns, support 7 days a week.

Olivia and Mike from LIINI

By parents, for parents—from Switzerland

LIINI was created in 2021 because having warm milk on the go was an unsolved problem. Today, more than 100,000 families rely on our everyday helpers—developed in Switzerland, tested at 3 a.m. And if something isn’t working right: Our support team is still available even when others have already started their weekend.

Warm milk when there's no outlet

15,000 mAh battery—50% more than its predecessor. It weighs just 410 grams, fits in any diaper bag, and is allowed in carry-on luggage on all flights. A walk, a train ride, a vacation: Your baby feeds whenever and wherever they’re hungry—not wherever the nearest outlet is.

The most durable LIINI ever

IP66 means: rain showers, a spilled bottle, spills while transferring liquids or feeding—none of that matters. Silicone cover over the USB port, coated electronics—built to withstand the realities of everyday life as a parent.

Parents show their LIINI

Real families, real life – this is LIINI in action.

← Swipe for more videos →

How to find the perfect ring size

Do you already have another ring at home?

Yes - measure ring

If you already have a good fitting ring, you can use that to determine the size.

Step 1: Prepare material

  • An existing ring that fits well
  • A ruler or tape measure
  • A pen and a sheet of paper

Step 2: Measure the existing ring

Lay the existing ring flat on a flat surface. Make sure that it does not deform or twist. Use the ruler or tape measure to measure the inside diameter of the ring. This is the distance from one inner edge to the opposite inner edge of the ring. Note the measurement in millimeters.

Step 3: Compare with our size chart

Now compare the measurement you noted with our size scale and choose the appropriate ring size.

No - Measure finger

If you don’t have a matching ring at home, you can easily determine your size with the following procedure.

Step 1: Prepare material

  • A thin strip of paper or a piece of string
  • A pen
  • One pair of scissors
  • A ruler or tape measure

Step 2: Measure the circumference of the finger

Wrap the thin strip of paper or string around the finger you want to wear the ring on. Make sure the strip fits snugly, but not too tight or too loose. Use a pencil to mark the place where the strip or string overlaps.

Step 3: Check the size

To make sure that the determined ring size is correct, you can wrap the thin paper strip or string around your finger again and place the ring on it. Check that it fits comfortably and is not too loose or too tight. Repeat this step if necessary to find the optimal size.

Tip: If you want more accurate measurements, you can repeat the process several times and take the average of the measurements.

Step 4: Compare with our size chart

Now compare the measurement you noted with our size scale and choose the appropriate ring size.

Size chart

SizeInner diameter
116.5 mm
217.3 mm
318.1 mm

LIINI® Ring template

Don’t worry too much about your ring size.

After your order you will immediately receive our LIINI fingerprint kit.

Included are original and pre-cutring templates to try on.

So you can always change to a smaller or larger ring before engraving in the worst case.

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