This portable air blower is very suitable for advertising balloons, promotional activities, festival,birthday, party and any other balloon decoration.Fits for latex balloon and decorative balloon. Specifications: Material: ABSNozzles:2 NozzlesInput voltage: AC(110-120V)material: ABSPressure: About 2 psiBlowing Rate:900(L/min)Noise: less than 90 dB. operating steps: 1: pinch two sides of mouth of balloon with your fingers2: cover inflation port with balloon3: inflate balloon by pushing inflation port down4: release inflation port when balloon size is suitable. (Note: Not suitable for air cushion bed.)