Philips Sonicare Xtreme e3000 Power Toothbrush for $15.97. Select in-store pickup at Walmart to save on shipping. Otherwise, shipping is free on orders over $45. Here is a screenshot for your reference. The Sonicare Extreme e3000 Power Toothbrush is a battery-operated toothbrush designed for teens and preteens. Most places have it for about $29.