Oral-B iO Series 9n. Purpose: Adult, Toothbrush type: Rotating-oscillating toothbrush, Teeth brushing modes: Daily care, Gum care, Sensitive, Whitening. Power source: Battery, Battery type: Built-in battery, Battery technology: Lithium-Ion (Li-Ion). Weight: 639.22 g. Package width: 100 mm, Package depth: 178 mm, Package height: 253 mm. Number of handles included: 1 pc(s), Number of brush heads included: 1 pc(s)