Small Size, Low Noise 370 Micro-type Vacuum Pump Low Noise And Strong Power Low Energy Consumption, Vacuum Crisper Pump 1. Working voltage:DC 12V 2. Air outlet diameter:4.5mm 3. Motor length:31 mm 4. Motor diameter:24 mm 5. Pump length:27 mm 6. Pump diameter:27 mm 7. Total length:58 mm 8. Rated voltage:3-6V, 4.5V or above is recommended 9. Rated current:Less than 400A 10. Inflation time:Less than 10s 11. Gas flow: 2.4LPM/min 12. Vacuum pressure: -58kpa 13. Air tightness:Less than 3 mmHg/min from 300mmHg at 100cc tank 14. Noise:Less than 65dB 15. Life test: 30000 Times (10s on, 7s off) Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Colour:As Shown Material:Silicone+Plastic Package Contents: 1 * Motor Pump 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 +/- 1-3cm.