Don't worry about delay. No need to replace the battery frequently. Quiet Keyboard and Silent Mouse: The keyboard adopts a scissor switch structure to provide you with a quiet and stable typing experience.
eBay
Transparent Mouse 2.4G Wireless Mouse Dual Mode Bluetooth Mouse 1600DPI Office Silent Mice 500mAh Rechargeable For PC Laptop
Aliexpress UK
High quality ABS keyboard keyboard instead of cheap, giving you the perfect typing experience. Note2 : What You Choose, What You Will Get, For example if you just choose the keyboard only,you will not received the Case Cover and Mouse.
eBay
M185 Mini Wireless Mouse Comfortable Portable Mouse Mice 1000DPI Ergonomic Mouse 2.4GHz with USB Mini Receiver for PC//Laptop
Aliexpress UK
Backlit Keys – ideal for use in dark rooms. Perfect for smart TVs, Android boxes, PCs, projectors, and more. Type: 2.4G Wireless Air Mouse Remote with Keyboard. Use: TV, Android TV Box, Computer, Projectors, Universal Remote.
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Logitech M185 Mini Wireless Mouse 1000DPI Silent Optical Mouse 2.4GHz with USB Mini Receiver Portable Mouse Mice for Windows
Aliexpress UK
Amazon Basics MD03 Wireless Keyboard & Mouse. Connects wirelessly with a 2.4 GHz USB receiver. Full-sized wireless keyboard and mouse combination set. Mouse requires one AA battery (included) and keyboard requires two AAA batteries (included).
eBay
Bluetooth-compatible Mouse Wireless Mouse Silent Computer Mice Portable Working Gaming Mouse For Laptops iPad Air Pro Tablet PC
Aliexpress UK
This Amazon Basics wireless mouse is designed with ergonomics in mind, featuring a comfortable grip and LED lights for easy navigation. It includes a 2.4 GHz USB receiver for reliable connectivity and can be powered by AA batteries or a corded electric source. The mouse is black in colour and has a product dimension of 12.6 x 4.5 x 8.23 cm, weighing 145.12 g. The mouse is perfect for laptops and has a hardware platform of Laptop. It is a unit type product with a unit quantity of 1. The mouse features a laser movement detection technology and has a special feature of LED lights. Its connectivity technology is USB and it belongs to the Souris ergonomique sans fil de taille normale avec défilement ra series.
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Logitech M750 Mouse 2.4Ghz USB Receiver Wireless Mice 2000DP Office Smart Mouse Portable Mouse For PC Laptop
Aliexpress UK
Smooth, precise and affordable wireless optical 3-button mouse with USB-A nano receiver for laptop, desktop and netbook PCs.
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JOMAA 2.4G Wireless Keyboard Mouse Combo RGB Backlit Rechargeable Full-Size Ergonomic Type-c Wireless Keyboard Mouse Set
Aliexpress UK
【Built-in Touchpad】The keyboard is equipped with a touchpad that supports multi-finger touch function, which can replace the mouse to operate the tablet, making it more convenient for you to use. The touchpad supports Android, Windows and IOS 13 (need to turn on assistive touch on iPad) 7 Unique Color Backlit - 7 Elegant LED backlight with 2 brightness level and auto sleep feature to maximize power usage.
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Bluetooth-compatible Wireless Keyboard Mouse Set for Android Windows for Tablet iPad PC Keyboard Wireless Mouse Gaming Keyboard
Aliexpress UK
The original superlight wireless performance mouse. Customizable RGB: Choose from 16.8M possible colours, quickly adjustable without software using mouse buttons. Deeply customize it in Glorious CORE, to make it match the rest of your desktop.
eBay
HXSJ T69 ergonomics Portable Cordless 2.4G Rgb Wireless gaming Mouse Laptop Computer Wireless Mouse for game pc
Aliexpress UK