BATTERY BLINDS. Wireless is flawless. Todays architecture requires products designed for convenience and concealed technology. The Silent Gliss battery-operated roller blind combines wireless shading at the push of a button within a stylish headbox. When a direct power supply is not possible the Silent Gliss roller blind 4955 can offer the luxury and convenience of a motorised blind. Easy to fit with a battery life of around 3 years makes System 4955 a great retrofit solution.