Portable Negative Ion Generator Ionion MX Champagne Gold - 1 piece 【Ionion MX Features】 ・The only one in Japan with an ion generation rate of 【Class 5】 based on the JIS standards of the Japan Functional Ion Association. ・Negative ion generation: 690,000/cm3, no ozone generation. ・PM2.5 removal rate: 99.9% ・Weighs only 20g, rechargeable via USB. ・Japanese patented product. Envelops the body in negative ions through the power of power metal. 【Japan Functional Ion Association Certification】 A non-profit organization established in 2001 to contribute to the development and dissemination of knowledge related to ions. Japan was the first in the world to establish a national standard (JIS) for negative ions, and JAIRA is the only third-party organization in Japan that measures according to JIS standards. Body size: 65mm (length) x 25mm (width) x 16mm (thickness) Body weight: 20g (including the included rechargeable battery) Accessories: Power adapter (with dedicated USB cable), strap, instruction manual Operating environment: Temperature 0-40 degrees Celsius, Humidity 30-70% Charging time: Approximately 3 hours Continuous operating time: Approximately 15-30 hours Negative ion generation: Average 690,000/cm3 ※Measured by the Japan Functional Ion Association Made in Japan 2 pieces for 9000 yen. If you are interested, please leave a comment. Please consider this, keeping in mind that it is stored at home. ★Condition★ New ☆Shipping☆ Anonymous delivery