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Contents
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1. Product introduction
1.1 Packing list
1.2 How to use buttons
1.3 Part name
2. Preparation
2.1 Assemble and charge
2.2 Using environment preparation
4. Abnormal symptoms
4.1 Symptom prompts
4.2 Troubleshooting
5. Technical parameters
3. Using the product
3.2 Maintenance
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