AUTO-STOP FUNCTION: Leakage protection, the sensitive auto-stop sensor stops the flow in time when the fuel is full, no worries about leakage and overfilling, clear and safe. TWO-WAY POWER SUPPLY: AA battery powered or USB type-c cable to connect your adapter or power bank. 4 AA batteries or even 2 AA batteries in emergencies. (NOTE: Batteries and red gas can not included) WIDE APPLICATION: 4 adapters in different sizes for most fuel cans, long 51-inch hose, as light as 0.6 kg to carry and drawstring bag for storage, for non-potable water such as oil, gasoline, etc. SUPER FAST SPEED: Transfers up to 3.2 GPM (gallons per minute) or 12.0 liters with sufficient power supply, high speed but low noise. AND EASY OPERATION: Strong ABS shell and flexible polyethylene hose, quality components, advanced structure and skillful assembly for long service life. Easy operation with ON and OFF and LED indicator to show working status. Color: Red Material: plastic Package Contents: 1 * Automatic fuel transfer pump 4 * connectors 1 * USB data cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.