Estimated delivery: 15–20 working days
2. Silent operation, environmental protection without loss
3. Configure the 7 million-level ion generator to continuously send and replenish the air vitamins to give the body aerobic exercise
4. Energy efficient, once charge, standby for long time
5. Built-in 180 mAh lithium polymer battery
6. Charge time: 20 minutes
7. Size: 46x57x20mm
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