7.83HZ Wave Ultra-low Frequency With Switch

Description:This product is wave 7.83HZ very low frequency , features high accuracy and stability.
High stable frequency acquisition elements: high stability , precision correction capacitance, precision multi-loop adjustable .
High quality polymer batteries, with overcharged, overvoltage, overcurrent protection. There is almost no voltage in the voltage supply.
With work toggle switch, easy to use.
wave can be applied to HIFI or sleep.
Specification:Polymer battery capacity: 1400mah
Time: charging current 250mA, 6 hours full of electricity
Working current: 7mV
Working time: 200 hours (full of electricity)
Size: 7 x 5.5 x 1cm/2.76 x 2.17 x 0.39inchPackage Includes:1 Piece Wave
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