【Easy to Use】: This air pump only needs to adjust the required pressure, when the air pressure value is reached, the air pump will automatically stop inflating to prevent overcharging. 1. Long press to turn on 2. Select the pump mode (car/motorcycle/bicycle/ball mode). 3. Click the M button to select the air pressure unit (BAR, PSI, KPA, kg/cm²). The first time you use it, you need to turn it on with the charging cable first 【Powerful Mini Tire Inflator】: The portable electronic air pump provides a maximum pressure of 150 PSI. Charging is convenient and fast. You can easily inflate toy cars, bicycles, motorcycle tires, swimming rings, inflatable toys and other inflatable products in just a few minutes. Once inflation is complete, it will automatically stop. 【Multiple Uses】: This battery air pump comes with several different additional nozzles. Suitable for cars, motorcycles, bicycles, electric scooters, wheelchairs, basketballs, footballs, etc., the products are both functional and