Philips 1100 Series Sonic Electric Toothbrush (HX3641/41) Features & Specifications 

Key Features:

• Sonic Technology
• QuadPacer and SmarTimer
• Slim Ergonomic Design
• Up to 14-Day Battery Life
• Removes up to 3x More Plaque

Specifications:

• Voltage: DC5V
• Battery: Rechargeable
• Battery Type: Lithium ION
• Usage: Slim ergonomic design | Easy click-on brush heads | Light shows battery status