Model Name: LOGITECH Touch K400 Plus

Specification :

• Connection Type: Logitech Unifying protocol (2.4 GHz)
• Wireless range: >10 m wireless range
• Optional software: Logitech Options
• Battery: 2 x AA (included)
• Special Keys: Mute, Volume Down, Volume Up
• Connect/Power: On/Off Switch
• Key Life: Up to 5 million keystrokes
• Typing noise: Within 55 dBA for all keys
• Dimensions Overall:
• Height: 139.9 mm
• Width: 354.3 mm
• Depth: 23.5 mm
• Weight: 390 g (with batteries)
• Touchpad Dimensions:
• Height: 76 mm
• Width: 47 mm