The " Dual Mode Wireless" means bluetooth 5.0 version work via receiver and bluetooth , it is dual mode ,please choose right option you need

Product Features:

1,Ultra-slim design,fashionable and convenient;
2,Strong anti-interference ability,long working distance up to 10M
3,Intelligent energy-saving red light design,long standby time
4,Scroll wheel zips,you through webs with ease and speed

Note:

1,Do not disassemble the product by yourself
2,Avoid dropping
3,Avoid water

2.4G Connect:

when using:
1,insert the USB receiver at the botton of the mouse onto the computer
2,open the power switch at the bottom of the mouse,then you can USE it normally!(Please note that in this order,quick pairing)

Bluetooth usage

1,Power ON to ON position,turn ON the bluetooth of the device,and click the BT3.0 Mouse or BT5.2 Mouse

How to connect mouse for iOS:

You need to upgrade to iOS 13 or above,
setting → Accessibility→ Touch → Accessibility Touch → Turn on your phone or tablet, and search for pairing