OMRON HTB216-G Mint Green [Sonic Electric Toothbrush *New brush included] Interdental brush also included. * Power supply: 2 x AAA alkaline batteries * Battery life (approx.): 2.5 months (using 2 AAA alkaline batteries at room temperature 23°C, 2 minutes per use, twice a day) * Size (approx.): Width 2.18 x Depth 2.18 x Height 20.0cm (including brush) * Weight (approx.): 60g (including brush and batteries) * Accessories: Plaque removal brush x 1, trial batteries (2 x AAA alkaline batteries)