Ymiko Schumann Wave Generator Ultra‑Low Frequency Pulse Resonance Module Board 7.83HZ DC 5V Schumann Wave Generator Ultra‑low Frequency Pulse Generator

Feature: 1. Can improve air problems and remove with good product compatibility. 2. Made of high‑quality material with sturdy and durable quality have a long service time. 3. Have humanized design simple operation easy to install convenient to use and operate. 4. Small in size and light in weight convenient to carry and use at any time very convenient and practical. 5. Have a nice appearance with the simple but elegant design offer aesthetic satisfaction. Specification: Item Type: Schumann Wave Generator Product Size: Approx. 102 x 80mm / 4 x 3.1in Power Supply: Voltage DC5V current 0.5A or more Package List: 1 x Schumann Wave Generator 1 x Cable Note: Please use an independent regulated power supply for each unit to avoid mutual interference between multiple shared power supplies and facilitate independent placement.