The Gardner Tackle Flextail Max Boat Pump is a cord-free, rechargeable electric pump designed for inflating and deflating kayaks, boats, and other large inflatables. Its double power impellers and 3-stage volutes deliver high airflow in a compact unit, while an ultra-high-speed motor produces up to 142L/min airflow and 12kPa (1.7PSI) of pressure. A single press of the power button handles the work, inflating a double-sized kayak in about 150 seconds or a single-sized kayak (L 274cm x W 76cm x H 33cm) in roughly 96 seconds. Heat dissipation vents on each side prevent overheating during use. Power comes from a 2500mAh rechargeable lithium battery, making the pump fully portable and usable anywhere. A full charge can inflate a kayak up to 15 times. The built-in smart pressure detector measures air pressure automatically, with a digital LED display showing the current value in real time, accurate to 0.1 PSI. The pump stops automatically once the preset pressure is reached, preventing over-inflation damage. Pressure can be set manually using the "+" and "-" buttons, up to a maximum of 1.7PSI/12kPa, and the "M" button switches between kPa and PSI units. A memory function recalls the last used pressure setting for the next session. The pump also handles deflation, with 10kPa of deflation pressure and 142L/min airflow for ultra-fast packing of inflatables. It can compress vacuum bags in about 25 seconds, saving up to 55% of storage space. - Airflow: 142L/min - Maximum pressure: 12kPa / 1.7PSI - Deflation pressure: 10kPa - Battery: 2500mAh rechargeable lithium - Inflation time (single kayak): 96 seconds - Inflation time (double kayak): 150 seconds - Inflations per full charge: up to 15 - Pressure display accuracy: 0.1 PSI - Pressure units: kPa and PSI - Functions: inflation, deflation, vacuum bag compression - Memory function: recalls last pressure setting - Heat dissipation: side vents