Support Android, iOS, windows. keyboard and mouse is connection to tablet by bluetooth connection, and mouse can be connected to laptop by usb, mouse support 2 modes (bluetooth and usb connection).
eBay
B033 Mini Folding Keyboard Wireless Bluetooth Keyboard with Touchpad Type-C Rechargeable Portable Keyboards for IOS Android
Aliexpress UK
7 Unique Color Backlit - 7 Elegant LED backlight with 2 brightness level and auto sleep feature to maximize power usage. The keyboard features hotkey shortcuts to make your work easier and more efficient.
eBay
YUNZII AL66 Silver 66-Key CNC Aluminum Knob Wireless Bluetooth/2.4G/Wired Hot Swap Gasket Mounted RGB Mechanical Gaming Keyboard
Aliexpress UK
2.4G Wireless Keyboard MINI Waterproof X Structure Compact Keyboard mouse Silver About The Item: The item is a set of one 2.4G wireless keyboard with 78 keys and one mouse and it can connect with your computer, TV box and smart TV. .
eBay
Spanish Keyboard with Spanish Layout Russian Arabic Keyboard Mouse Kit 100% Keyboard ISO Color Backlight Wired Gaming Office T20
Aliexpress UK
(Note 1:If You Need to Use Touchpad Mouse,Your iPad System Need to be Upgraded to IOS 13.4orAbove（iPad Air 1 Unable to Upgrade to IOS 13.4). High quality ABS material silicone keyboard keyboard instead of cheap, brings you a perfect typing experience.
eBay
MANMU Office Wired Keyboard Gaming High Quality Keyboard And Mouse Set Keyboard Gaming Setup
Aliexpress UK
The keyboard has a slope angle for the great typing position. 【The hot-keys are not fully compatible with OS】The keyboard and mouse combo commonly use one nano receiver only for saving USB port of your computer or laptop.
eBay
104 key Backlit Mechanical Keyboard Wired Gaming Keyboard waterproof Luminous keyboard And Mouse Set for Gamer PC Laptop Office
Aliexpress UK
High quality ABS keyboard keyboard instead of cheap, giving you the perfect typing experience. Dual Mode: Bluetooth 3.0 + 2.4 G wireless. Bluetooth Mouse Feature Standard Bluetooth 3.0. Type:2.4Ghz Wireless+Bluetooth（Dual Mode）.
eBay
Kebidumei 104 key Backlit Mechanical Keyboard Wired Gaming Keyboard Luminous keyboard And Mouse Set for Gamer PC Laptop Office
Aliexpress UK
The keyboard connected with bluetooth, the mouse connected with bluetooth(your device should support bluetooth function). Wide Compatibility: Compatible with iPad,Android tablet/Windows tablet. (Note: The keyboard may not be possible to connect to the device via the Bluetooth adapter.).
eBay
UGREEN Mouse Wireless Ergonomic Shape Silent Click 2400 DPI For MacBook Tablet Computer Laptop PC Mice Quiet 2.4G Wireless Mouse
Aliexpress UK
Improved 2.4GHz wireless for greater range and less chance of interference from other nearby wireless devices. Keyboard Type: Wireless Connection. 2.4GHz wireless technology provides a stable connection and secure wireless connection.
eBay
BOW Rechargeable Wireless Mouse Portable 2.4G Wireless Mouse LED Rainbow Lights Quiet Click Mice for Laptop Computer
Aliexpress UK