Chip-set: MCU Pump: Special Anti-corrosion Pump Voltage: DC 6V Detection sensor: Infrared sensor Battery: 4*AA Alkaline battery Touch switch with Led indicator: Colorful SMT LED Long press the Switch for 2 seconds: Blue light will flash，turn on the device Working Status: Blue light will flash Standby Status: Blue light flash one time every 5S Tap one time to change first gear to second gear: Purple light will flash Long press the Switch for 2 seconds under standby status: Red light will flash, turn off the device Low battery warning: Red light flashing until shutdown Foaming timefirst gear: 0.3S/one time Second gear: 0.5S/one time IR effective detection distance: 3-5CM Bottle capacity: 410ML Product Gross weight: 395g Product Net weight: 230g