Funciones y detallesUS Cypress RF Chipset3 years battery life with normal useAuto Sleep/Awake button to save powerCellular technology, multipoint interconnection (many connection technologies compatible with Bornd wireless mice and keyboards)Press the Left and Right buttons at the same time for 3 seconds to adjust resolution between 1000 & 2000 DPIPower saving function is set-up automatically every 8 minutes and is easily activated