Wireless Keyboard & Mouse Havit KB830WB, Silent, Slim, Spill resistance, 105 Keys, Fn Keys, 5 buttons, 1600dpi, 400/500 mAh, 2.4Ghz+BT, EN, White. Connection: Dual ModeWireless technology: 2.4GHz+BT5.1Wireless distance: 10mSize: 390*132*22mmkey number: 105Operating Voltage: 3.7V Capacity: 400mAhCharging time: 2 hoursProduct weight: 572gConnection: Dual ModeWireless technology: 2.4GHz+BT5.1Wireless distance: 10mSize: 112*58*26mmkey number: 5Resolution: 1000-1200-1600DPIOperating Voltage: 3.7V Capacity: 500mAhCharging time: 1.5 hoursProduct weight: 76g