1.Specifications and Details Keyboard Specifications Height: 143.9 mm Width: 373.5 mm Depth: 21.3 mm Weight (with battery) 558 grams (with battery).2.Technical Specifications Battery life (keypad) 24 months Battery type: 2 x AAA (included) Wireless operating range: 10 meters 10 meters Wireless Technology: Unifying Uplink Receiver or Bluetooth® Low Power Technology Unifying Unified Receiver: Yes 3. Compatibility Unifying Uplink Receiver Requires an available USB port Windows® 10, 11 or later macOS 10.15 or later 5.Product List Keyboard 2 AAA batteries (pre-installed) Unified USB receiver User documentation