Schumann Wave Generator 7.83Hz Ultra-low Frequency Pulse Generator with Recharge

Describe The product is Schumann Wave 7.83Hz extremely low -frequency generator. Focus on precision and stability! This model is a charging model a small portable volume can be charged and send 20cm charging cable New optimized circuit design gold -plated launch circuit! Remarks: Imported original electronic component. It is recommended to use multiple distribution and the effect can be more experienced Application *Used for audiovisual space *For the bedroom *Used for office *Used for creative space *Used for tea ceremony meditation space Product parameters: Product name: Charging model Schumann Wave Generator Size: length width and height (68*52*12mm) Power: 5V Micro-USB interface charging cable Battery: polymer lithium battery capacity 850mAh Use time: charging current is 250mA full 6 hours the working current is about 7mA and you can use about 200 hours at full power (168 hours a week) Packing list: 1*Schumann Wave Generator 1*charging cable 1*screwdriver