Beck's Classic Birdseye Underpad, 18 x 24 Inch, 1 Dozen Maternity Posture Support load capacity under normal use Made in the U

Beck's Classic Birdseye Underpad, 18 x 24 Inch, 1 Dozen Maternity Posture Support load capacity under normal use Made in the U load capacity under normal use * 5 year limited warranty * Seat diameter 16 * Base diameter 24 * Height Range 19 Unit * Provides ultrasound dual channel high volt pulsed DC stimulation and low volt galvanic * Used for iontophoresis * Up to 20 watts of variable or non interrupted ultrasound * High Voltage features reciprocal and ramped surge modes with adjustable surge duration (1 160pps) * Balance Control Feature * Lo Volt Galvanic has constant currentoutput variable surge and continuous mode and reverse polarity * Up to four electrodes *