Ocoopa UT5 Nano Ultra-Mini Fast-Heating Hand Warmers (Pair) | 52g, smaller than a heat pack × 2-second instant heat × 3 temperature settings 38–52℃ | Up to 7.3 hours battery life・2000mAh・International UL Certified

Ocoopa UT5 Nano Ultra-Mini Fast-Heating Hand Warmer—Smaller than a heat pack, lighter than lipstick, each unit is just 52g and 48×56×14mm. Heats up in 2 seconds; a pair allows for simultaneous warmth for both hands. Genuine product with a 1-year warranty.
Do you find standard hand warmers too big and heavy, leading you to leave them at home? Ocoopa introduces the all-new UT5 Nano, ultra-mini hand warmers measuring only 48×56×14mm. They are smaller than a traditional heat pack and lighter than a tube of lipstick, fitting comfortably in pockets, jeans, gloves, or even a wallet, making them effortless to carry. Experience instant warmth in 2 seconds with no waiting. Features 3 temperature settings (38–42℃ / 43–47℃ / 48–52℃), perfect for Hong Kong’s unpredictable weather. With a built-in 2000mAh battery providing up to 7.3 hours of runtime, they keep you warm throughout the day. The aluminum alloy body features a chic embossed floral design. Internationally UL-certified for safety, you can use them with complete peace of mind. ※Results may vary by individual

52g Ultra-Mini | 48×56×14mm | 2-Second Fast Heat | 3 Temperature Levels 38–52℃ | 2000mAh | Up to 7.3 Hours Battery Life | Sold as a Pair | USB-C Charging | Aluminum Alloy Body | International UL Certification | Genuine Product with 1-Year Warranty

Do you experience these frustrations?

• Hand warmers are too big and heavy, creating a bulge in your pockets and becoming a burden to carry.
• They take minutes to warm up, failing you exactly when you need them most in the cold.
• Disposable heat packs are wasteful and not environmentally friendly.
• Hong Kong's weather fluctuates; standard hand warmers have only one heat level, which is often either too hot or not warm enough.
• A single hand warmer only warms one hand, forcing you to swap back and forth—it's just not convenient.

Why do our hands always get cold first?

• When temperatures drop, the body prioritizes blood flow to the core and vital organs, reducing circulation to extremities like the fingers. This is why hands get cold first, especially during long commutes, while scrolling on your phone, or in air-conditioned offices. Ocoopa UT5 Nano provides 2-second fast heating with 3-level precision control to keep your hands comfortable. Its ultra-compact size ensures you'll actually want to carry it with you everywhere. ※Results may vary by individual

Three Key Features

1. Ultra-Mini Design, Smaller Than a Heat Pack

• Each unit weighs only 52g and measures 48×56×14mm with a 1.4cm thickness. It's smaller than a heat pack and lighter than lipstick, making it the most compact model in the Ocoopa lineup.

2. 2-Second Instant Heat

• Featuring a new rapid-heating mechanism, it starts warming in about 2 seconds. No need to wait in the cold—get instant warmth the moment you step out of a car or a shopping mall. ※Results may vary by individual

3. 3-Level Temperature Control for Hong Kong Weather

• Low (38–42℃) for comfortable long-term use, Medium (43–47℃) for daily chill, and High (48–52℃) for cold snaps. Easily switch settings with the red/blue indicator light.

Thoughtful Design

• Up to 7.3 Hours Runtime: Built-in 2000mAh battery provides up to 7.3 hours of continuous warmth on the lowest setting (typically 3–6 hours).
• Sold as a Pair: Use one in each hand simultaneously, or share one with a partner or child.
• USB-C Charging: Uses a universal Type-C port (5V/1A), compatible with most phone chargers; fully charges in about 3.5 hours.
• Aluminum Alloy with Embossed Floral Finish: A collaboration with "Artists in Bloom," featuring a matte feel with durable, scratch-resistant embossed patterns.
• International UL Safety Certification: Built-in intelligent temperature control and overheat protection.
• Reusable: An eco-friendly and cost-effective alternative to disposable warmers.

Product Specifications

Package Contents: UT5 Nano Hand Warmers ×2, USB-C Cable ×1, User Manual ×1, Gift Box

How to Use

Usage Tips

• Charge before leaving; start on low to conserve battery.
• Using them inside pockets or gloves reduces heat loss.
• If the high setting feels too hot, place inside thin gloves.
• Use Low mode in offices and High mode in outdoor wind.
• Charge every 2–3 months if stored for long periods to maintain battery health.
• Wipe with a damp cloth; avoid alcohol/corrosives. Not waterproof.

Safety Precautions

• Not a medical device.
• Consult doctor if: You have poor sensitivity, skin conditions, wounds, are pregnant, or are an infant.
• Do not: Use while sleeping, use high heat on skin for long periods, dismantle, squeeze, or expose to water/fire.
• During use: Stop if you feel discomfort or excessive heat. Do not use while charging. Comply with airline rules for lithium batteries.

Who is this for?

• City dwellers who want a hand warmer small enough to fit in a pocket.
• Users with smaller hands who want a comfortable fit in gloves or a wallet.
• People wanting instant warmth during commutes or while out and about.
• Students and office workers needing flexible temp control for indoor/outdoor changes.
• People looking for a set to share or to warm both hands.
• Those looking for a sophisticated, small winter gift.

FAQs

Q1: How small is it?
A: 48×56×14mm, 52g. The most compact Ocoopa model.

Q2: Is "2-second heat" real?
A: Yes, it starts warming within 2 seconds. ※Results vary by individual.

Q3: Is the 7.3h runtime per unit?
A: Yes, per unit on the lowest setting. Runtime varies by level.

Q4: Will it burn my hands?
A: Features intelligent UL-certified temp control. Use lower settings if you have sensitive skin. ※Results vary.

Q5: Can I bring it on a plane?
A: Generally yes as a carry-on due to the 2000mAh capacity; do not check in. Follow your airline’s specific rules.

Q6: Can one cable charge both?
A: Depends on the specific batch (some include a splitter); otherwise, use any 5V/1A USB-C cable.

Smaller than a heat pack × 2-second heat × 3-level temp—Ocoopa UT5 Nano, small enough for a wallet, warm enough for the whole day. 🔥