It can inflate balloons quickly under high pressure much easier than any other pumping ways. This pump would be really useful for birthday wedding or any other celebration occasions which need the colorful balloons. Model: HT-508 Operating Modes: - Connect plug to 220V ~ 240V AC socket. - Half Auto Mode: Turn on the switch to I and cover the vent hole with the balloon then press down vent hole slightly to inflate the balloon and loosen it to stop. - Auto Mode: Turn on the switch to II put the balloon on the vent hole to inflate. Power Supply: - US: AC110V ~ 120V 60Hz Consumption: 700W Package Included: 1 x Balloon Pump 1 x Instruction Manual