Japan Debut: DUOTEM, a Next-Generation Cooling & Heating Device, Launches on Makuake
ONLEE Corporation has commenced the Japan domestic pre-sale of “DUOTEM,” a portable cooling and heating device utilizing Peltier elements, on the crowdfunding platform Makuake, starting February 2, 2026.
This device aims to provide a smart solution for personal temperature management, a growing necessity amidst recent record-breaking heatwaves and severe winter temperature fluctuations. Traditional portable fans often merely circulate hot air, and disposable hand warmers lack temperature control. DUOTEM was developed to address these limitations with advanced technology. It garnered significant attention on US Kickstarter, raising approximately $150,000 (over 23 million JPY) from more than 1,400 backers, demonstrating global recognition for its innovative approach.
The Makuake project page is available at:
https://www.makuake.com/project/duotem
Three Key Features of DUOTEM
1. Unrivaled Speed: Reaches Target Temperature in 3 Seconds
DUOTEM incorporates high-performance Peltier elements, allowing its cooling plate to rapidly cool or heat within just 3 seconds of activation. This eliminates waiting time, providing immediate relief from scorching heat or quick warmth during cold seasons.
2. Dual Functionality: -10℃ Cooling to 55℃ Heating in One Device
The cooling mode can lower the temperature by up to -10℃ from the ambient temperature, delivering an ice-like sensation. The heating mode offers three adjustable levels (38℃, 45℃, 55℃), serving as an effective alternative to disposable hand warmers in winter. This single device provides year-round temperature conditioning, eliminating the need for seasonal replacements.
3. Optimized for “Palm Conditioning”
Designed to effectively cool or warm the palms, where “AVA vessels” (arteriovenous anastomoses) are concentrated, a concept gaining traction in sports science. This design helps suppress core body temperature rise or alleviate cold hands, making it suitable for athlete recovery, office refreshment, and overall body conditioning.
Usage Scenarios
DUOTEM offers versatility across various situations:
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Business & Commuting: Cool down neck or wrists during sweaty commutes to maintain a smart appearance.
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Sports & Spectating: Use for post-exercise icing or heatstroke prevention at stadiums.
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Outdoor Activities: Maintain body temperature at campsites or golf courses without power sources.
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Winter Cold Protection: Instantly warm fingers or lower back as an electronic hand warmer.
Makuake Project Overview
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Project Name: DUOTEM: Extreme Cooling & Instant Warmth in 3 Seconds. A Personal Thermal Device for Full Body Conditioning from Your Palm.
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Project Period: February 2, 2026 (Monday) – (End date not specified in the press release)
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Example Rewards:
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Super Early Bird Discount: Up to 60% OFF (limited quantity)
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Early Bird Discount: Up to 55% OFF
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Pair Discount: Special pricing for 2-unit sets (Discounts and contents are subject to change.)
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Product Specifications
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Product Name: DUOTEM
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Modes: Cooling Mode (down to -10℃) / Heating Mode (38℃/45℃/55℃)
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Continuous Use Time: Up to approximately 180 minutes (varies by environment and mode)
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Charging Time: Approximately 3 hours (USB Type-C)
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Safety Features: Automatic stop timer (10 mins cooling / 20 mins heating), overheat prevention function
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Weight: Approximately 380g
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Included: Main unit, dedicated hard case, charging cable, instruction manual
About ONLEE Corporation
ONLEE Corporation aims to introduce innovative technologies and ideas from around the world to the Japanese market, enriching people’s lifestyles. Through “DUOTEM,” the company proposes a new option for comfortably navigating Japan’s challenging seasons.
For more information, please visit the official website:
https://www.onleeone.com/duotem
