Schumann Wave Generator Electromagnetic Wave Version

Product information:

Product: Smart Home Module
Specifications: Gold Thread Style, Silver Thread Style
Working mode: 7.83Hz extremely low frequency electromagnetic wave
Battery life: about 1 year
Power: 0.3mW
Product size: 100X100X18 (mm)
Charging method: Equipped with a built-in 2000mA lithium battery, it can be charged using the universal Type-C interface of mobile phones (mobile phone charger is sufficient, with no current limit)