Philips StyleShaver QS6141/33, Foil shaver, Black, Silver, Battery, Lithium-Ion (Li-Ion), 4 h, 100-240 V Philips StyleShaver QS6141/33. Shaver system: Foil shaver, Product color: Black, Silver. Power source: Battery, Battery technology: Lithium-Ion (Li-Ion), Charging time: 4 h