1. The device contains strong magnetism. To avoid the effect of magnetization, please keep away from magnetic cards, IC cards, implanted medical devices (such as pacemakers), hard drives, AM chips and other vulnerable devices.

2. The built-in waterproof membrane of the sound pickup hole and the air pressure balance hole of the device is specially designed for waterproofing. Do not remove the printing by yourself or use sharp objects to damage it, otherwise the waterproof protection will be lost. After using in water, please use a soft clean cloth to clean the moisture and foreign matter on the device in time.

3. When there is water or dirt on the surface of the extension interface of the device, it must be wiped clean before connecting power supply accessories and other operations. Otherwise it will stop working or cause corrosion.

4. Do not dry the device with a hair dryer, otherwise the microphone membrane and the built-in breathable membrane will rupture and water will enter.

5. If the product catches fire, please immediately use water, water, sand, fire blanket, powder, carbon dioxide fire extinguisher to extinguish the fire. Please select the fire extinguishing method according to the above recommended order according to the actual situation.

6. Please use the product in an environment where the temperature is between -20°C and 45°C.

7. The charging environment temperature of the product is 5°C to 40°C. To optimize the life of the built-in battery, charging will be suspended when the temperature limit is reached in the power-on state, and it is recommended to charge in the power-off state.

8. Do not disassemble the product in any way. If the battery is pierced during disassembly, the electrolyte inside the battery will leak, and even cause fire and explosion. Do not mechanically strike, crush or throw the product. Do not place heavy objects on the product.

9. Do not heat the product. Do not place the product in microwave or pressure cooker.

10. It is forbidden to place the product near a heat source (stove or heater, etc.) and to place the product in a car on a hot day. Do not store the product at temperatures above 60°C.

11. Do not store the battery for a long time after it has been fully discharged to avoid battery damage caused by over-discharge. Otherwise, the device will no longer function properly.