Wireless technology: Logitech Unifying Receiver or Bluetooth low energy technology, Unifying ready receiver: Yes, Wireless operating distance: 10 m, Battery life Keyboard: 24 months, Battery type: 2AAA (included)

Wireless technology: Logitech Unifying Receiver or Bluetooth low energy technology, Unifying ready receiver: Yes, Wireless operating distance: 10 m, Battery life Keyboard: 24 months, Battery type: 2AAA (included)