The USB Bluetooth adapter is a separate part, it's not included in the keyboard and mouse set. Bluetooth Edition: Bluetooth 3.0 Keyboard and Bluetooth 5.0 Mouse. The keyboard will automatically go into power savings mode after 10 minutes of inactivity.
eBay
Ergonomic 2.4G Plug and Play Wireless Keyboard and Mouse Combo 104 Keys Coloful Retro Round Keycaps Wireless Keyboard
Aliexpress UK
The item is a set of one 2.4G wireless keyboard with 78 keys and one mouse, has 3 colors and it can connect with your computer, TV box and smart TV. The mouse and keyboard occupy only one port and you can use the saved interface to connect to other devices.
eBay
GEODMAER 65% Wireless Gaming Keyboard,LED Backlit,68 Keys, Ultra-Compact, Anti-ghosting, No-Conflict Wireless Keyboard for PC
Aliexpress UK
Computer Keyboard + Multi-touch touchpad. The keyboard also features an auto sleep and auto wake mode. If there is a long period of inactivity, the keyboard will automatically go into a sleep mode. During the sleep mode, the user can wake the unit up by pressing any key.
eBay
Redragon BS8772 Wireless Keyboard and Mouse Combo, 78 Keys 2.4Ghz Wireless Low-Profile Mechanical Keyboard w/ 2400 DPI Mouse
Aliexpress UK
Mini Ultra Slim Bluetooth Wireless Keyboard For ipad Tablet Laptop Black New
eBay
YUNZII B75 PRO Purple 75% Wireless Mechanical Gaming Keyboard, Gasket Hot Swap Custom RGB 82-Key Creamy Knob Wireless Keyboard
Aliexpress UK
Connection: Wired USB/Wireless. This slim keyboard features a plug-and-play design that requires no drivers and is compatible with Windows 7, 8, and 10. 1 Keyboard (the style is up to you). -Due to different producing batches, product details might be a little different.
eBay
Redragon BS8772 Wireless Keyboard and Mouse Combo,78 Keys 2.4Ghz Wireless Low-Profile Mechanical Keyboard/2400 DPI Ergonomic Mou
Aliexpress UK
2.4G Cordless Wireless Keyboard and Mouse Set For PC MAC Laptop Computer. The mouse and keyboard occupy only one port and you can use the saved interface to connect to other devices. Item Type: Wireless Keyboard.
eBay
Redragon S142 Wireless Gaming Keyboard & Mouse Combo, 98 Keys K515 PRO Wireless RGB Membrane Keyboard
Aliexpress UK
Best for Notebook Users who always work with number keys, Mini digital keyboard. Plug-and-Play --no drivers required; USB port required. -- Light weight and compact design makes it both nice and practical.
eBay
NEW Logitech K400Plus Wireless Keyboard with Touch Panel - Wireless Touch Keyboard with Compact Battery, Plug-and-Play
Aliexpress UK
JEDEL SLIM BLUETOOTH WIRELESS KEYBOARD AND MOUSE SET FOR PC LAPTOP TABLET IMAC. The keyboard will automatically go into power savings mode after 10 minutes of inactivity. Press any key and wait 2-3 seconds to wake the keyboard.
eBay
60% Wireless Gaming Keyboard, 61 Keys Triple Mode BT5.0/2.4G/USB-C Wireless Keyboard- RGB Backlit
Aliexpress UK