Prospera PL009 Electronic Pulse Massager for $19.99. Shipping is $5.00 for a total of $24.99 shipped. Here is a screenshot for your reference. This portable, compact massager is a Transcutaneous Electrical Nerve Stimulation (TENS) therapy unit that uses mild electronic impulses to stimulate muscles and alleviate pain. It features six automatic massage programs and three massage techniques with adjustable speed. Most places have this electronic pulse massager for about $39.