Ultra‑Low Frequency Pulse Generator Schumann Waves Sound Improvement Small Rechargeable

1、Schumann waves 7.83HZ very low frequency generator features high accuracy and stability with MSDS certificate. 2、High stable frequency acquisition parts include high stability pulse chip, accuracy correction capacitance and accuracy multi-loop adjustable resistor. 3、And high quality polymer batteries is with overcharged, overvoltage, overcurrent protection. There is almost no voltage ripple in the voltage supply. 4、With work toggle switch, easy to use. Schumann waves can be applied to HIFI or sleep. 5、Rechargeable model, small and portable, comes with a 20CM charging cable. Newly optimized circuit designs and gold‑plated launching circuit. 6、Schumann wavse itself does not directly act on sound or video products to improve the quality of sound quality, but the role of the space environment, which relaxes people's body and mind, improves the human body's perception of sound and images, improves human healthy, improves work efficiency and mental stress with also has better results. 7、Used for audiovisual space, bedroom, office, innovative space, tea ceremony, space of realization to truth. <div class="wang-edit-text"><p class="wang-edit-text"><p class="wang-edit-text">Item Type: Ultra-low frequency pulse generatorSize: Approx. 68 x 52 x 12mm / 2.7 x 2 x 0.5in (Length x Width x Height)Power Supply: 5V micro-usb for Android interface charging cableBattery: Polymer lithium battery, capacity 1200mahUse Time: Charging Current: 250maFull Charge Time: About 6 hoursWorking Current: 7MAFull Charge Used for: About 200 hours (168 hours a week)Charging Cable: Approx. 20cm / 7.9in<style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 1 x Ultra‑Low Frequency Pulse Generator1 x USB Cable1 x Screwdriver