Bio Bidet Store via Newegg the BioBidet Ultimate Series Electric Bidet Seat in Round or Elongated for $229.99 with free shipping. That's the lowest price we could find for either style by at least $88, although we saw it for $30 less during Amazon's Prime day last July. It features an auto-wash mode, dual posterior/anterior nozzle, hydraulic seat and lid, heated seat, and intelligent body sensor.