Can this be used wired as well? Since the battery inside is not user replaceable, do you just throw away the whole keyboard, or is it dual power?

I don't know why the other user gave you incorrect information. The keyboard 100% has wired mode. Plug a USB-C cord into your computer and the keyboard, then press "FN + Eject Key" on the keyboard (Eject Key is to right of F12). Bluetooth will turn off, the keyboard will be charging, and it will still work with your computer.

What is the battery life if you have backlight off?

Thank you for choosing Satechi and for reaching out to us. We first recommend charging the keyboard for at least 2-3 hours with the included charging cable with a power adapter for a more efficient charge. (18W and up) If you are using the backlight all the time at the highest brightness, it can drain the battery quite fast, but it does have a standby shut-off mode, that kicks in after 30min of non-usage. You can change the settings so it does not completely shut off. With no backlight on, the battery is about 60hrs. If you would like to use the backlight and not worry about the battery, you can also use the keyboard in wired mode. While using one of the two cables included, you can use the key combination (fn+usb/eject) to turn off the Bluetooth and use it in wired-only mode. A green light will stay lit on the top right when in this mode

Will this keyboard work ok with a pc and android device as well? i would assume so....

Yes. The Satechi Slim X1 Bluetooth Backlit Keyboard will be compatible with Windows and Android Devices.

Is this backwards compatible with bluetooth 2.1? i cant get it to connect to my macbook (late 2008) eventhough my os is up to date...

Hello, thanks for reaching out to us. Unfortunately our X1 SLIM is not compatible with old devices with 2.1 Bluetooth modules. kind regards, Satechi Technical Support

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Description

⌨️✨ Type smarter, not harder—your Mac’s new best friend!

SLEEK ALUMINUM ELEGANCE - Space Grey aluminum finish complements your Apple gear with a modern, minimalist vibe.
FAST RECHARGE LONG PLAY - USB-C rechargeable battery keeps you powered longer—no more downtime, just productivity.
ILLUMINATE YOUR WORKSPACE - Customize your typing ambiance with 10 adjustable backlight levels—work late, look sharp.
TAILORED FOR MAC PERFECTION - Designed exclusively for macOS with dedicated function keys and numeric pad—upgrade your Apple setup.
EFFORTLESS MULTI DEVICE MASTERY - Switch between 4 Apple devices with a single tap—boost your workflow without missing a beat.

The Satechi Slim X3 Bluetooth Backlit Keyboard is a premium, Mac-optimized wireless keyboard featuring an extended layout with numeric keypad and Mac-specific function keys. It supports seamless Bluetooth connection to up to four Apple devices, boasts 10 levels of adjustable backlighting for any environment, and offers a sleek space grey aluminum design. Powered by a rechargeable USB-C battery, it’s engineered to elevate your Apple workspace with style and efficiency.

Specifications

Brand	SATECHI
Product Dimensions	44.3 x 14.8 x 3.7 cm; 420 g
Batteries	1 Lithium Polymer batteries required.
Item model number	ST-BTSX3M
Manufacturer	Satechi
Series	Slim X3 Bluetooth Backlit Keyboard
Color	Space Grey
Wattage	4.81 Watt-hours
Power Source	Battery Powered
Hardware Platform	Laptop, Smartphone, Tablet
Operating System	macOS, iPadOS, iOS
Are Batteries Included	No
Lithium Battery Energy Content	4.81 Watt Hours
Lithium Battery Packaging	Batteries contained in equipment
Lithium Battery Weight	0.69 Grams
Number Of Lithium Ion Cells	1
Number of Lithium Metal Cells	1
Item Weight	420 g

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