Adjustable vibration frequency, can be repeatedly used for a long time.
Secret packaging
Material: Medical Silica Gel + ABS Battery: USB Cable (included) Size:22.5x3.5cm/8.86x1.38'',USB cable length:100cm/39.37''(approx)  
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Best international shipping I've ever tried. Worth every penny!
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Fantastic experience overall. Will recommend to friends and family.
