Color: White, Material: PC (Polycarbonate)+ PVC (Polyvinyl Chloride) + PP (Polypropylene) Size: Approx. 6.8 x 6.2 x 3.9cm/2.68 x 2.44 x 1.54″, Power supply: AA Batteries & USB power supply Power consumption: <2.0W, Nebulization rate: >0.25ml/min MMAD: 3.7+25% μm, Medication cup capacity: 10ml (max), Working frequency: 110kHz + 10kHz, Working environment: Min.5°C-Max 40°C Storage, environment: Min.-40°C-Max 55°C.