InLine 55370, QWERTZ, German, Black, Aluminium, Wireless, Bluetooth InLine 55370. Keyboard layout: QWERTZ, Keyboard language: German. Product colour: Black, Housing material: Aluminium. Connectivity technology: Wireless, Device interface: Bluetooth, Bluetooth version: 3.0+HS. Power source: Battery. Battery life (max): 60 h, Keyboard form factor: Mini, Power source type: Battery