Orders usually arrive within 1-2 days of dispatch if the item is in stock. If an item is out of stock, delivery may take 2-4 weeks.

1. Register your return. To do so, send an email with the following information to laifen@oneten.ch :

• Bill number:
• Article name (model):
• Serial number:
• Date of purchase:

2. Return the item to our warehouse. The shipping address is as follows:

• oneten brand development AG
• c/o SVZ Swiss Shipping Center AG
• Blumattstrasse 7, Ramp 7
• CH-6162 Entlebuch

3. In order for the refund to be processed in a timely manner, please send a return confirmation to Laifen with the following information:

• Name of the transport company
• Tracking number

For more information, see our return policy: Return and warranty policy

The refund will be processed once the item has been received at our warehouse. The refund will be credited to the same method used to pay for the original order. Processing time is usually 3-5 working days.

We accept the following payment methods for purchases through our online shop:

• Visa
• Mastercard
• PostFinance
• Twint
• PayPal
• The invoice
• Payment in advance

Please note that your billing address must match the address on your credit card statement.

Once you have placed your order online, you can view the details of the purchase, track its preparation and find out about shipping in the "My Account" section.

Once you receive notification that the item has been shipped, delivery will take approximately 1-2 days.

We recommend the Gum Care brush head for sensitive teeth. It features ultra-thin, soft bristles that, combined with Wave's 60° oscillations, thoroughly clean teeth while being gentle on gums.

Dentists recommend changing the brush head every three months or immediately if it becomes damaged or deformed. Wave brush heads have 90-day reminder bristles that indicate when a replacement is needed.

Yes, a gap of approximately 1 mm between the brush head and handle is normal. This reduces the transmission of vibrations between the two parts.

The Gum Care brush head uses ultra-thin PBT bristles, tapered to 0.02 mm at the tip, to reach deep into the interdental spaces. The Super-Clean and Ultra-Whitening brush heads use high-quality DuPont bristles for effective cleaning.

The brush heads utilize the industry's most advanced copper-free bonding process, which effectively inhibits bacterial growth. They are also the first brush heads to receive global food safety certification from TÜV Rheinland Germany.