Eklasse EKWLKM05XM Wireless Keyboard & Mouse Combo

Working Voltage：2.2V-3.3V, Frequency Range: 2404MHZ-2478MHZ, Modulation / Channel access: FSK / 20 Channels, Channel Spacing:1MHZ, Receiver Sensitivity:-85DBMHZ, Antenna type / Gain: PCB Antenna / -2DBMHZ,Keyboard Size: 450x152x25mm, Keyboard Net weight:399 g,Mouse Size: Dimensions: 115*66*33mm, Mouse Net weight: 42.4 g, With 2xAAA and 1xAA alkalines batteries