Here lies the answer to my question
offered on Amazon's lightening deal, and free returns, so I already 1 for me ordered. Even though I got one of the Aliexpress ones too during CR sale. But it's amazon so why not another one.
Offers both BLUETOOTH, AND USB dongle connection. Hence the item is not going to be worthless if you loose the dongle.
Features full sized, num pad with it too. JUST KEEP IN MIND (no Backlighting, and non foldable keyboard)
and seems like you need AA batteries for the keyboard. So not that big of a deal, Just get some LAADAs if you dont have some, otherwise I'd use a NiMH battery for them (they are also less likely to leak than alkaline IMO).
Enjoy Spending at Bezos
✅【Multi-Device Bluetooth Keyboard】Support 2 connection methods: 2.4G and Bluetooth(BT3.0+BT5.0) It has the function of connecting devices with Android, Windows, and Mac systems at the same time. It could keep stablely connecting on different devices and easy to switch
✅【Ergonomic and Slim Wireless Keyboard】This keyboard is thin and beautiful with new colors. It uses a matte silver material and a white particle non-slip chassis. The keyboard back stand is very ergonomic and can help you reduce wrist pressure caused by long-time typing
✅【Quiet Click and Scissor- Switch】This bluetooth keyboard uses noise reduction technology to greatly reduce the sound of keystrokes. The Scissor-switch thin and light keys can relieve the fatigue on your wrist or fingers. At the same time, it can ensure a quiet and pleasing work environment
✅【Auto-Sleep Mode】The bluetooth keyboard uses lithium batteries (not included in the package). It will automatically enter the power-saving mode if there is no operation for 30 mintutes. Click any button at will, the keyboard could be activated normally
✅【Wide Compatibility】Support 2.4g and Bluetooth dual-mode connection; works well with mobile phones, computers, tablets all devices; It also could be compatible with Windows, Mac, IOS, Andriod all systems.Note: Generally,desktop computers do not have Bluetooth. If you plan to connect the device via Bluetooth, please make sure that the device has Bluetooth in advance
Reviews stating significant lag when switching between devices.