Logitech K350 Wireless Wave Ergonomic Keyboard + USB Unifying Receiver Dongle

Logitech Wave Ergonomic Wireless Keyboard Y-RCP140 with No USB Receiver dongle

Logitech K350 Wireless Wave Keyboard - No USB Dongle

Logitech K350 Wave Wireless Keyboard - No DONGLE/USB Connector

Logitech K350 Wave Wireless Keyboard (Not tested) NO USB Receiver / Dongle

Logitech K350 Wireless Wave Keyboard Ergonomic Black NO USB Dongle

Logitech K350 Comfort Wave Wireless Keyboard with USB dongle tested Excellent