iClever Wireless Keyboard with Numeric Keypad

iClever Keyboard Wireless Keyboard and Mouse Set, Japanese JIS Layout, Silent, Ultra-Thin, Type-C Rechargeable, Full-Size with Numeric Keypad, Mouse with 3-Level Adjustable DPI, Wireless 2.4G, Compatible with PC Windows/Mac, IC-BK23Combo (Black)

The 'G' key came off once and I reattached it, but it's still difficult to press. It's stiff.
It works normally and I am currently using it.

Please purchase only if you understand this.

↓Quoted from Amazon
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Top Highlights
Brand iClever
Color Black
Connectivity Technology 2.4G Wireless USB (Requires USB-A port)
Features Silent
Compatible Devices PC, Laptop, iMac
Keyboard Description Plug and Play, JIS Layout, Scissor Switch, Full-Size, USB Receiver Included
[2.4G Wireless Keyboard Japanese JIS Layout Full-Size & Wireless Keyboard Mouse Set] The keyboard and mouse share one USB-A receiver. Simply plug in the receiver to use. With 2.4GHz wireless technology, you can operate comfortably with stable communication without delay, data loss, or interference, even in environments with many radio waves in the same frequency band. The operating distance is up to 10 meters.
[Long-lasting Use & Energy-Saving Design] The keyboard features a convenient Type-C rechargeable battery, eliminating the need for troublesome battery replacements. It can be used continuously for 90 hours after a full charge. The mouse requires 2 AAA batteries (sold separately). Both the keyboard and mouse have power switches, and they automatically enter sleep mode after 10 minutes of inactivity.
[Symmetrical & DPI Adjustable Mouse] The streamlined mouse fits perfectly in your hand, and you can easily adjust the mouse sensitivity between three DPI levels (1000/1200/1600).
[Thin Design & Excellent Durability] The keyboard has a sophisticated 3.95mm ultra-thin body and a simple, stylish appearance, making it perfect for both office and home use. Main unit dimensions: 42.8x12.5cm. The keyboard's thinness (1.5cm at the back, 0.3cm at the front) improves work efficiency.
[Wide Compatibility] Compatible with Windows 2000, XP, Vista, Win 7/8/10, or the latest Windows.