Product Name Whitening Rechargeable Electric Toothbrush Specification Maximum Amplitude锛?4.5mm Max Frequency锛?20000 rpm Mode 锛歋ensitive and gentle, deep clean, whiten and polish Working Time锛? 30 days (brushing twice a day, an average of 2 minutes/time) Brush head 锛?Comfortable clean type, Standard clean type, Whitening clean type Voltage and Power锛?3.7V /1.5W Input锛?5V/300 mA Waterproof Level锛? IPX7 Charger USB锛?Micro USB charger Size锛?38 x 17 mm Weight锛?8g Feature Whitening Rechargeable Electric Toothbrush Detachable Head Cover for a Ventilated Condition DuPont 3D Curved Soft Bristles 3 Brushing Modes Available 2-minute Smart Timer, 30-second Interval Pause Automatic Memory Pattern Self-locking Function Core Selling point 鈥?鈥淟ipstick鈥?grade size, delicate, handy, and durable 鈥?Matte-colored Aluminum Alloy Body with PVD Coating and AF Craft 鈥?Food-grade 304 stainless steel body 鈥?US Dupont soft bristles 鈥?2-minute Smart Timer, 30-second Interval Pause 鈥?Effective Cleaning Capability China Smart Electric Toothbrush website:http://www.odaytoothbrush.com/electric-toothbrush/smart-electric-toothbrush/