This professional-grade portable oral irrigator utilizes efficient piston pump technology to create a precise pulsed water flow, deeply cleaning between teeth. It's fully waterproof, IPX7 rated, making it safe for showering. Its built-in 1200mAh lithium battery provides up to 30 days of battery life, perfect for travel. The 300-400mL removable water tank accommodates a variety of oral care scenarios. Available in models from L8 to L15, in both Chinese and English versions, and with larger tank configurations, it's suitable for users worldwide. [Core Selling Points] . Piston Pump Pulse Technology: Stable, high-frequency water flow effectively removes plaque and massages gums . 30-day battery life: 1200-2000mAh large-capacity battery, USB-C charging, no more frequent charging . 300-400mL large water tank: Complete full-mouth cleansing with a single fill, no need to refill . Multi-language Versions: L10 Series: Available in Chinese and English, suitable for both domestic and international markets L12/L13/L15: Exclusively available in English, with a large tank Available in multiple colors . IPX7 waterproof: 1 meter submersible for 30 minutes . Multiple models available: From the basic L8 to the upgraded L15, meeting different budgets and functional requirements [Product Specifications] Pump Type: Piston Pump Waterproof Rating: IPX7 Capacity: 300-400mL Battery Capacity: 1200-2000mAh Battery Life: >30 Days Weight: 390g Style: Portable Target Audience: Adults [Model Selection Guide] . L10 Series: Bilingual interface in Chinese and English, available in white, pink, and black. Basic portable model. . L12 Series: Exclusive English version with enlarged water tank, available in white, green, and black. . L13 Series: Available in large and small sizes, available in orange, white, and black. A cost-effective choice. . L15 Series: High-end model, available in gray, white, and black, with upgraded power. . L8 Series: Entry-level English model, lightweight design. [Applications] Daily oral hygiene Orthodontic care Periodontal support Travel