Rechargeable Sonic Calculus Remover

Physical dimensions: 190 × 30.5 × 20.5 mm. Body material: combination of soft-touch silicone and engineered plastic for durability and slip resistance. Power system: 300 mAh lithium-ion battery (3.7V), charged via included USB cable in under 2 hours. Runtime: exceeds 15 days with recommended use (2 × 3 min/day). Waterproof rating: full-body seal — safe for direct water rinse and storage in humid bathroom environments. Intended for adult oral hygiene maintenance only. Core function is high-frequency sonic vibration (not rotation or oscillation) to agitate and detach surface-level biofilm, mineralised plaque and extrinsic stains. Five adjustable gears allow fine-tuned responsiveness — critical for users managing sensitivity, recession or recent restorative work. The linear vibration path minimises lateral force on teeth and gums, enhancing safety versus scraping tools. Sound output stays below 60 dB — suitable for quiet flats and shared accommodation. Best used as part of a twice-daily routine alongside fluoride toothpaste and interdental brushes. Especially beneficial for professionals with visible staining (e.g., teachers, customer-facing roles), older adults seeking gentler alternatives to manual picks, or anyone prioritising long-term enamel preservation over rapid cosmetic results.