COSLUS C20 & C41 2-in-1 Water Flosser and Sonic Toothbrush, IPX7, 300 mL

This 2-in-1 set combines a water flosser and sonic toothbrush in a portable format. Its 300 mL water tank supports a flossing session with fewer interruptions for refills. The toothbrush delivers 42,000 strokes per minute, while the flosser uses a dual water stream to clean between teeth. Together, they bring two parts of a daily oral-care routine into one kit.

Tech specs

• Name: COSLUS C20 & C41
• Type: Water flosser and sonic toothbrush combo
• Colour: Black
• Tank volume: 300 mL
• Toothbrush speed: 42,000 strokes per minute
• Flosser stream: 0.3 mm + 0.3 mm dual water stream
• Modes: Clean, soft, child and massage
• What’s included: 4 flosser tips and 4 toothbrush heads
• Material: Plastic and silicone
• Waterproof rating: IPX7
• Power: Rechargeable, battery-powered
• Battery life: Flosser up to 30 days, toothbrush up to 45 days

Requirements

The cordless flosser charges with a 5V adapter, which is not included. This means you can use a compatible 5V adapter you already have rather than needing a dedicated adapter for the flosser.

Tips for day-to-day use

Use the water flosser to direct a stream between teeth, then brush with the sonic toothbrush as part of your regular routine. The dual-stream design is intended to reach the spaces between teeth, while the toothbrush’s W-shaped head is designed to follow the tooth surface. The tank’s 300 mL capacity helps keep a session moving without frequent refills.

Four tips and four brush heads make the set practical for a household that wants separate attachments for different users. The listed modes—clean, soft, child and massage—offer options for different brushing preferences. IPX7 waterproofing supports rinsing and use in wet washroom settings, follow the product’s charging instructions and keep charging equipment away from water.

Because it brings both tools together, this kit suits shoppers who would rather organize a flosser and toothbrush as one coordinated set than choose each device separately. Its rechargeable design also makes it convenient to pack for travel, with the flosser and toothbrush offering their own stated battery-life figures. Buyers commonly appreciate the combined format, cleaning function and lightweight design. Feedback is mixed on power and durability, so individual impressions of those aspects vary.

When it makes sense

The COSLUS C20 & C41 is a practical fit for people looking to add water flossing alongside powered brushing, whether at home or while travelling. The separate set of four tips and four brush heads is useful for shared household routines, while the rechargeable, portable design helps keep both devices together for trips. Choose this combo when the appeal is having two complementary cleaning tools in one set, with multiple modes and a generously sized flosser tank for everyday use.