Features:_x000D_ _x000D_ It features stable working performance, safe, low noise and high efficiency. _x000D_ A practical tool using in home, brings much convenience for your daily life. _x000D_ It is good for eliminating fatigue, improving work efficiency and improving sleep quality. _x000D_ It could clean the air and remove the second-hand smoke, offering a healthy and comfortable environment. _x000D_ Has good cleaning and purifying performance, eco-friendly and energy-saving with low power consumption. _x000D_ _x000D_ Specification:_x000D_ Condition: Brand _x000D_ Material: ABS + Silicone Wire_x000D_ Input Voltage: AC200-240V, AC110V, DC12V (optional)_x000D_ Power: Less Than 1W_x000D_ Working Temperature: -10~50_x000D_ Working Humidity: 35%~85%_x000D_ Storage Temperature: -20~50_x000D_ Negative Ion Concentration: 2400000pcs/cm3_x000D_ Output Voltage: -6-8KV DC_x000D_ Negative Ion Input Line Color: Red, Black_x000D_ Negative Ion Output Line Color: 4 Red Lines_x000D_ Product Size: Approx. 42*25*21 mm / 1.7*1.0*0.8 in_x000D_ Weight: Approx. 39g~44g / 1.4oz~1.6 oz_x000D_ _x000D_ Package list:_x000D_ 1 * Negative Ion Generator_x000D_ _x000D_ Note:_x000D_ 1. Please allow 0-1 cm error due to manual measurement. Thanks for your understanding._x000D_ 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1It features stable working performance, safe, low noise and high efficiency 2A practical tool using in home, brings much convenience for your daily life 3It is good for eliminating fatigue, improving work efficiency and improving sleep quality 4It could clean the air and remove the second-hand smoke, offering a healthy and comfortable environment 5Has good cleaning and purifying performance, eco-friendly and energy-saving with low power consumption