Users Manual Part 2

suggest for indoor use, dry location.
Battery charging 0-45°C, Playing 0-50°C
Use only standard USB port certified according to IEC60950-1 as LPS or
IEC62368-1 as PS2.
15. To protect you and your property against damage due to explosion of internal battery
don`t throught the battery into fire, water or similar liquid.
16. The hanging up height shall not exceed 2m. The ceiling mount means shall withstand
4 times of the weight of the equipment.