Thync is an ingenious device that uses electrical impulses to help you relieve stress, relax after a hard day, or, on the contrary, invigorate. The device has various modes: “Motivation,“ ”Deep Relax,“ “Zen,” ”Deep Sleep,“ and even ”Bliss," feeling more like a light drunkenness.
You can find it on Amazon.com! Look in the "Sports & Outdoors" tab for "Sawyer Products B4 Extractor Pump Kit". The price right now is $16.99.