Product name: LED projection humidifier Product size: 130*110*126MM Material ABS/PP/PC/PVC Power supply mode: USB rechargeable battery Number of fog outlets: 1 Noise: 36dB or less Applicable area: 21-30 square meters Operation mode: mechanical Input voltage/current: DC5V/1.5A Battery: 2000mAh Working current: spray about 500mA/projection lamp about 900mA Spray volume: 35ML-55ML/H Light color: white light, warm light and blue light Light source: LED Projection pattern: ocean, universe, starry sky Use power: 7W Battery voltage: 3.7-4.2V Water bottle capacity: 500ML Charging time: about 2.5H Additional functions: humidification + projection + night light Discharge usage time: long spray about 3.5 hours, intermittent spray about 7 hours, projection lamp 2 hours, long spray + projection lamp about 1.5 hours Product standard configuration: One projection humidifier, three films, one cotton swab, one data cable, one Chinese and English manual