[Sonic Vibration] kingeroes C2PRO electric toothbrush adopts the latest sonic vibration technology. The metal shaft generates the vibration force. The vibration frequency can reach up to 42,000 times per minute. It can effectively remove plaque, whiten teeth and improve oral health. It produces vibrations like the sound of a sports car, rather than the tractor-like sound of a normal plastic shaft. [4 Modes] The 4 modes it offers are clean, whiten, soft, and super. You can select several modes based on your preferences. The forces and modes of vibration in each mode vary. Each light denotes a certain mode, and the super mode is indicated when the lights for the clean, whiten, and soften modes continue to flash. [Ultra-long Standby Time] It has a 60-day operating period after being fully charged. You don't need to charge it frequently because rapid charging is supported. Moreover, the kit includes a travel case. It is quite convenient that you may bring it along with you when you travel. [Replacement of Brush Head] As the set comes with 8 brush heads, you won't need to buy the head too often. Please remember to check the brush head's airtight pouch before using it to see if it is open. To prevent reselling, each of our brush heads is individually wrapped. The bristles, however, could distort while being transported. It will regain its former shape within 15 seconds in warm water above 50 degrees, so there is no need to be concerned. [Customer Service] Login to your amazon account, choose "Your orders", find the order ID, click "Contact seller". kingheroes will give you after-sales support seven days a week, twenty-four hours a day.Kingshoes will provide a one-year warranty service. Kingheroes Electric Toothbrush for Adults, Rechargeable Sonic Toothbrush with 4 Modes, 42000 VPM Motor, One Charge for 60 Days, Comes with 8 Brush Heads & Travel Case (Pink) Kingheroes electronic toothbrush adopts the latest sonic vibration technology. The metal shaft generates the vibration force. The vibration frequency can reach up to 42,000 times per minute. It can effectively remove plaque, whiten teeth and improve oral health. The vibration it produces is like the sound of a sports car rather than the tractor-like sound of the normal plastic shaft. Login to your amazon account, choose "Your orders", find the order ID, click "Contact seller". Kingheroes will give you aftersales support seven days a week, twenty-four hours a day. The four modes it offers are clean, whiten, soft, and super. You can select several modes based on your preferences. The forces and modes of vibration in each mode vary. Each light denotes a certain mode, and the super mode is indicated when the lights for the clean, whiten, and soften modes continue to flash. It has a 60-day operating period after being fully charged. You don't need to charge it frequently because rapid charging is supported. Moreover, the kit includes a travel case. It is quite convenient that you may bring it along with you when you travel. As the set comes with 8 brush heads, you won't need to buy the head too often. Please remember to check the brush head's airtight pouch before using it to see if it is open. To prevent reselling, each of our brush heads is individually wrapped. The bristles, however, could distort while being transported. It will regain its former shape within 15 seconds in warm water above 50 degrees, so there is no need to be concerned. What's in the box – 1 Kingheroes C2PRO sonic toothbrush, 1 USB-DC charging cable, 8 Brush Heads, 1 Travel Case