A set of a 42V output, 40500mAh battery and two fans, with a washable design. - Model: SANEOR AIRSDOAR - Battery Capacity: 40500mAh - Output Voltage: 42V - USB Output Port: Yes - Fan Mounting Method: 2-WAY design - Dedicated Adapter: Included - Washable: Yes - Digital Display: Yes - Fans: Set of 2 【Sophisticated Japanese Craftsmanship - 42V Battery Fan Set, Shocking Debut!】Outstanding Japanese craftsmanship! Japanese artisans, constantly innovating their techniques over the years, have finally developed a high-performance 42V motor. The battery's chip was jointly developed with a domestic power company, and the two fans are equipped with Japanese-made motors. While ensuring ultra-high airflow, durability, sustainability, and quietness have been significantly improved. It achieves an astonishing maximum airflow of 219L/second. After wearing it, the wind from the waist quickly blows to the waist, back, abdomen, chest, neck, and face, accelerating the airflow inside the clothes, providing a cooling effect of -16°C on the body. It is an essential item for outdoor workers to simultaneously improve work efficiency and safety at construction sites and outdoor work under the scorching sun. 【PSE Certified 40500mAh Large Capacity Battery】The 40500mAh battery has obtained PSE certification to ensure sufficient safety during use. In addition, it incorporates dual chips of PTC and CIT, providing functions such as overheat protection, overcurrent protection, overload protection, short circuit protection, overcharge protection, and automatic recovery. It is very safe during charging and use. The battery chip was jointly developed with a domestic power company, ensuring heat resistance and durability. Furthermore, it has undergone a 6-month high-load test before release, and its durability is reliable. The usage time is approximately 9 hours in "automatic mode", approximately 5 hours at "42V" wind power, approximately 6 hours at "38V" wind power, approximately 7.5 hours at "34V" wind power, approximately 10 hours at "30V" wind power, approximately 13 hours at "26V" wind power, approximately 21.5 hours at "22V" wind power, and approximately 25 hours at "20V" wind power, which is a significant increase compared to the conventional usage time! The dedicated adapter can charge the battery to 100% in about 5 hours. Please note that shipping costs will be separate for Okinawa Prefecture, Hokkaido, Kyushu, and Fukuoka Prefecture. Thank you for viewing.