Thank you for viewing! Brand new, unused. -------------------- 【Introducing the 2025 Industry's Strongest 52V Fan & Battery Set!】 A major breakthrough by Japanese craftsmen! Based on their extensive experience and after numerous tests, Japanese craftsmen have finally developed a 52V high-volume fan and battery set. The 52V air-conditioning fan is making its grand appearance, achieving an ultra-high wind speed of 249L/second with a high-performance battery! The air circulation inside the clothing flows rapidly after wearing, with a 249L/second gale blowing from the waist, rapidly evaporating sweat from the waist, back, shoulders, and neck, providing a cooling effect of -17℃, and rapidly lowering the body's perceived temperature, leaving you feeling very cool. 【52V, Yet 4.5 Hours of Continuous Use Possible - Includes a PSE-Certified 40500mAh Battery】 The battery itself has obtained PSE certification! Simultaneously, it incorporates PTC and CIT safety protection chips, featuring overheat protection, overcurrent protection, overload protection, short-circuit protection, overcharge protection, and automatic recovery, eliminating the fire risk seen in other companies' products. To enhance performance and operating time, the battery chip adopts a structure designed by a domestic power company, and the battery capacity has been increased to 40500mAh, allowing for good operating time even at high wind speeds. The usage time is approximately 8.5 hours in "automatic mode," approximately 4.5 hours at "52V" wind power, approximately 5.5 hours at "46V" wind power, approximately 7 hours at "42V" wind power, approximately 9.5 hours at "38V" wind power, approximately 12.5 hours at "34V" wind power, approximately 21 hours at "30V" wind power, and approximately 24.5 hours at "26V" wind power, a significant increase compared to conventional usage times! Charging time is approximately 5 hours with the dedicated adapter. 【Gale-Force Fan - Japanese-Made Brushless Motor】 To achieve both increased airflow and reduced noise, the Japanese design team adopted a high-precision, domestically-made brushless motor, with a double ball bearing structure inside. Compared to conventional fan and battery sets, this achieves a 65% increase in airflow and a 4% dB reduction in noise. 【Reliable Japanese Brand - Prompt Response】 Applicable diameter for work clothes: 9cm, battery size: 6.9 x 12.7 x 3.7cm. Set Contents: 2 fans, 1 52V battery, 1 adapter, 1 connection cable, 1 battery instruction manual, 1 fan instruction manual.