1) Product instruction : 2.4GHz wirless keyboard !#!amp!*! mouse set 2) Electrical specification : RF specification the mainly material for the keyboard: ABS Auto hopping function Working distance:!#!gt!*!10m 2、Receiver A. Interface type:USB3.0 B. Working voltage:5V±5% C. Working current:!#!lt!*!100mA 3、 Keyboard A. Battery mode: 7#(AAA)* 2 B. Working voltage:1.8V-3.3V C. Working current:!#!lt!*!2mA @ 3V D. Sleeping current:!#!lt!*!50uA @ 3V E. Sleeping mode:The keyboard automatically enter sleep mode when you are not using in 10 minutes. F. Sleeping waking way:To press any key