1. Rechargeable, can also be plugged to use. 2. Large-capacity battery, very long endurance. 3. With 2 kinds of continuous mode/intermittent mode, longer range. 4. If the product is working, after a power failure, the product will automatically to battery power, and when the power comes in, automatically charge the battery. The product comes with a power indicator, so you can clearly see the power. Product: Rechargeable aquarium air pump. Model: JS1106 Battery Capacity:1500mah. Endurance: 8h (continuous mode). Endurance: 16h (intermittent mode) Power: 0.5w. Voltage:110-240v. Battery type: lithium battery Color: White Material: Plastic Instructions for use 1. When charging for the first time, for 6-8 hours, all four battery indicator lights are on to indicate charging. After the battery is fully charged, the four battery indicator lights automatically turn off and turn off the charging state. 2. on the indicator light, the motor turns on and off. 3. Gently press the on/off button to turn on the power, and the power indicator lights will light up. The four power indicator lights will display according to the current power level (all four lights on indicate 100%, three lights on indicate 70%, two lights on indicate 40%, and one light on indicates 10%); 4. When the product is in the shutdown or charging state, lightly press to enter the intermittent state, and the intermittent indicator light flashes (in the intermittent mode: work for 10 seconds, stop for 10 seconds). 5. Press lightly again to enter the continuous working state of the motor, and the intermittent indicator light will turn on and remain on (without flashing). Press lightly again to enter the shutdown state, and all indicator lights will turn off. Whether it is during the charging process or after the charging is completed, the operation can be carried out according to point 4. Different batches may have differe