✦ 7 PURE COLOR BACKLIT: White, red, purple, yellow, cyan, green and blue, 7 pure colors led backlight by the backlit wireless keyboard lighten up your night. There are also 3 different brightness(Low-Mid-High-Off) to adjust according to your requires. It's harmless to your eyes and spice up your typing atmosphere.
✦ WORK SIMULTANEOUSLY ACROSS 5 DEVICES: With Built-in one Wireless (2.4G) and 4 Bluetooth Channels (BT1 & BT2 & BT3 & BT4), press long (5 sec) to pair the first time on any of the 5 channels (2.4G/BT1/BT2/BT3/BT4) and short (1 sec) thereafter to switch. Pair with up to 5 devices simultaneously and easily switch between them with only 1 click.
✦ BLUETOOTH & 2.4GHz DUAL CONNECTION: Newly Bluetooth connections make this multi device bluetooth keyboard wide compatibility; plug the 2.4G USB receiver within 33 feet no worry about connection stability. Compatible with Mac OS, iOS, Windows and Android system, works on iPad Pro/Air/Mini, iPad 4/3/2, iPad Mini 4, iPhone, Galaxy Tab, MacBook Pro/Air, Surface Pro & More.
✦ STURDY HOLDER & SCISSOR KEYS: This multi device keyboard with an integrated holder is sturdy enough to hold your tablet & phone (better without any case) together at a suitable angle, which can make full use of workspace and reduce your arm extensions. Responsive and compact scissor-switch keys ensure your fatigue-free and accurate typing to enhance your work efficiency.
✦ RECHARGEABLE & POWER SAVING: Equipped with an 800mAh battery, this rechargeable wireless keyboard can continuously work 450h without backlit after being fully charged via a type-C charging cable. If not used in 10 min, it will automatically go into sleep mode for power saving. Press any key and wait for 3-5 sec to wake it up.
Question: Does it easy to switch between devices?
Answer:    Yes, the power switch turn left for 2.4G wireless and middle for off, right for Bluetooth channels, you can press BT1/2/3/4 to select which you want.
Question: How can I tell the level of charge of the keyboard?
Answer:    The charging light is red, then goes off when fully charged.
Question: How do you change the backlight color?
Answer:    Please press light bulb to adjust the brightness three-level, press light bulb + Page up/Page down to switch 7 colors..
Question: Does this fit for Win 11 pc?
Answer:    Yes, this wireless bluetooth keyboard is compatible with Mac OS, Windows, iPad OS, iOS, Android, Linux, etc.
Question: Are the keys silent or making a lot of noise when typing?
Answer:    Rarely hear noise from it.
• Toggle the power switch to "Wireless" and plug the receiver.
• After successfully paired, the power indicator will stay red for 3s and go out.
• Toggle the power switch to "Bluetooth", the indicator will turn red on 3s and gone.
• Select the Bluetooth key by short press, the corresponding indicator will stay blue.
• Long press the Bluetooth key for 3s, the indicator will flash blue light to enter pairing mode.
• Select "Bluetooth Keyboard" on the device, the indicator will turn blue on 3s and paired successfully.
* Follow the steps above to pair with the other three devices, press the BT1/BT2/BT3/BT4 to switch to another device.