Back in stock! This Philips Sonicare Essence Rechargeable Toothbrush drops from $49.99 to $19.95 at Amazon. Shipping is free for Amazon Prime Members or with orders over $35. This ties with the lowest price we've seen to date on this model. It features a 2 minute timer, comes with one brush head, and can last up to two weeks on a single charge. Editor's note: I bought this model and love it! However, it no longer includes the travel case. Sales tax is charged in most states.