TORRAS Launches “FlexLine 3-in-1 Cube” Mobile Battery with Retractable Cable
Rakuso Mirai Co., Ltd., under its brand TORRAS, dedicated to the philosophy of “be here now,” aims to enrich and convenience customers’ present moments through the development and sale of smartphone accessories and small home appliances. The company is pleased to announce the launch of the “FlexLine 3-in-1 Cube,” a new addition to its “FlexLine” series of retractable charging accessories. This all-in-one device integrates a rapid charger, a mobile battery, and a 1-meter retractable cable.
The “FlexLine 3-in-1 Cube” will be available from June 2026 on the official website and major online stores, including Amazon.

The “FlexLine 3-in-1 Cube” features a maximum output of 45W for rapid charging and a 1-meter retractable Type-C cable, the longest in the series. By combining these three functions—rapid charger, mobile battery, and built-in cable—into a single unit, it aims to provide a convenient charging environment anytime, anywhere.
Furthermore, it includes a strap for easy carrying and drop prevention, a safe design utilizing next-generation GaN (gallium nitride) semiconductors, a large capacity of 10,000mAh, and the ability to charge both the device and the battery simultaneously from a single outlet. These features are designed to offer both high safety and superior convenience.
Product Features
-
“Charger, Mobile Battery, Cable” – All-in-One Charging Solution
This device condenses three functions—a rapid charger, a mobile battery, and a 1-meter retractable cable—into one unit. This is designed to significantly reduce luggage for business trips and travel, making portability more comfortable.
-
Industry-Leading 1-Meter Retractable Cable
Equipped with a retractable cable that extends up to 1 meter, the longest in the series. This allows users to comfortably reach outlets in various locations, such as under the seats on bullet trains or along walls in cafes, which were previously difficult to access with shorter cables.
-
Strap for Drop Prevention and Easy Portability
A detachable PU leather strap is included to prevent accidental drops while on the go. It can be easily hung on a wrist or bag, reducing the perceived weight and allowing for light, hands-free carrying, even when both hands are occupied.
-
Series’ Highest 45W Output & Large 10,000mAh Capacity for MacBook Air Compatibility
With the series’ highest 45W output and a large 10,000mAh capacity, it can charge smartphones to PCs like the MacBook Air at full speed. It can charge the latest iPhone 17 series to approximately 50% in just 30 minutes.
-
Simultaneous Charging of Device and Battery
By plugging the product into an outlet and connecting a device, both can be charged overnight simultaneously. The system automatically switches to charging the mobile battery itself once the device’s charging is complete, ensuring both are 100% charged by morning.
-
Industry-Leading Safety with Next-Generation GaN
The adoption of next-generation GaN (gallium nitride) semiconductors enables a high output of 45W, low heat generation, and a compact size. Additionally, it is equipped with a multi-safety system to prevent overcharging and short circuits and has obtained PSE certification. It is also approved for in-flight carry-on.
Product Specifications

Where to Purchase
-
Official Online Store: https://torras.co.jp/prt-3in1
-
Amazon: https://www.amazon.co.jp/stores/page/A5CE0273-18D5-40FB-AEB8-534432ED288B?channel=PRT-nlb
About TORRAS Product Safety
TORRAS mobile batteries have obtained international safety and quality certifications and are approved for air travel.
Products manufactured after August 1, 2025, will include markings indicating 3C certification.
About TORRAS
Under the philosophy of “be here now,” TORRAS develops and sells smartphone accessories and small home appliances with the aim of enriching and making customers’ present moments more convenient.
Product Categories: Smartphone cases, mobile batteries, chargers, glass films, other smartphone accessories, small home appliances, etc.
Official Links:
-
Official Website: https://torras.co.jp/
-
X (formerly Twitter) Official Account: https://twitter.com/TORRAS_JP
-
X Lifestyle Account: https://twitter.com/TORRAS_life
-
Instagram Official Account: https://www.instagram.com/torras_japan/
Official Online Stores:
-
Amazon: https://www.amazon.co.jp/torras
-
Docomo Online Shop: https://onlineshop.docomo.ne.jp/products/accessories
Company Overview
Company Name: Rakuso Mirai Co., Ltd.
Representative: Yan Kong
Established: May 10, 2021
Capital: 5 million JPY
Location: Bright Akihabara B1F, 1-24-9 Taito, Taito-ku, Tokyo
Business Activities: Planning, marketing, sales, import/export of its own brand “TORRAS” in Japan.
Group Company: Lanhe Technology Group (100% parent company)
E-mail: torras-koushiki@torras-global.com
Group Overview
Lanhe Technology Group was founded in 2008 in Shenzhen, Guangdong Province, China. It develops and sells smartphone accessories, electrical products, and automotive supplies. It operates its own brands, such as “TORRAS” and “RANVOO,” in over 148 countries and regions worldwide. By 2025, the group had acquired over 6,000 product patents and received numerous international design awards, including the Red Dot Design Award, one of the world’s three major design awards.
Location: Zhantao Technology Building, Minzhi Avenue, Longhua District, Shenzhen, Guangdong Province, China

