"New - The item is brand-new, unused, and unworn. The item may or may not have the original tags and/or original packaging. Includes One Philips Sonicare 4900 Series handles, One charging stands, One USB charging cords, One travel cases, One $25 manufacturer's rebate offers 62,000 brush movements per minute Two modes of intensity Water-resistant In testing, the DiamondClean brush head included in the 4900 Series handle demonstrated to remove more plaque than a manual toothbrush In testing, the DiamondClean brush head included in the 4900 Series handle demonstrated to be more effective at reducing gingivitis and gingival bleeding vs. a manual toothbrush after two and four weeks of use Replace brush head every three months Built-in lithium-ion rechargeable battery The offer for the two $25 manufacturer's mail-in rebates is valid for purchases made between 11/1/22 and 2/28/23; offer expires 3/31/23 Approximate measurements: Toothbrush handle 6.75" x 1" x 1"; Travel case 7.5" x 2" x 1.75"; Charging base 1.81" x 0.75"; Brush head 3.5" x 0.75" x 0.75""