OXA USA COM via Amazon offers the Tec.Bean Professional Cordless Rechargable Dental Oral Irrigator for $34.95. Coupon code "CF2A4TYR" cuts the price to $30.39. With free shipping, that's $57 off list and the lowest price we could find. It features four operating modes, four replacement nozzles, a charging base, and a carrier bag. Deal ends July 31, 2018.