Philips Sonicare Rechargeable powered interdental cleaner HX8472/03, Grey, White, Ergonomic, Built-in, Lithium-Ion (Li-Ion), 24 h, 2 week(s) Philips Sonicare Rechargeable powered interdental cleaner HX8472/03. Product colour: Grey, White, Handle(s) features: Ergonomic. Battery type: Built-in, Battery technology: Lithium-Ion (Li-Ion), Charging time: 24 h