Logitech K855 Wireless Mechanical TKL Keyboard Linear GraphiteSpecifications:Connection: 2.4GHz Connection via USB Receiver or BluetoothWireless Range: Up to 10 MetresSwitches: Mechanical Red (Linear)Battery Life: 36 months (With Normal Usage)Batteries Required: 2 x AAA (Included)Compatibility: Computers / phones / tablets that support external keyboards | Windows 10/11 or later | macOS 10.15 or later | iOS 11 or later | Chrome OS | LinuxDimensions: 138.8 x 355.2 x 38.8mmWeight: 692.4gWarranty: 1 Year LimitedFeatures:Connect with 2.4GHz Wireless via USB Receiver or BluetoothUp to 10 Metres of wireless freedomCompact size designed to fit busy desksSimple plug-and-play setupModern & Durable DesignPremium Aluminum top caseRed Mechanical Switches (Linear)Compatible with Windows 10/11 | macOS | Android | iOS 11 | Chrome OS36 Month Battery Life (Batteries Included)Connect up to & switch between 3 devices – Even with different operating systemsCertified Carbon NeutralMade with Recycled PlasticDownloadable Driver software (Logi Options+)What’s in the box?1 x Logitech K855 Signature Wireless TKL Mechanical Keyboard1 x Logi Bolt USB Wireless Receiver2 x AAA Batteries1 x User Manual