Suomi K21 Mechanical Keyboard

Product features

• The keyboard is made of solid material and the keys are responsive.
• Keycap and slit backlighting, uniform color.
• FN+Tab key combination to switch 18 kinds of light effects: Follow the wave, drip ripples, flow of light, flow of light, point color eye-catching, a touch, stepping snow, key ripples, flower blossoms, running light effect, rotating storm, snake running, starry, flowing, diagonal change, always bright, breathing, with the press of the extinguished.
• FN+Num=turn off/on backlight, FN+delete key=Del.
• Num single press to switch to the second function: Esc=previous song, Tab=play/pause, delete key=next song, FN=stop.Wired mode with the driver each key with custom function, macro definition.
• FN + 0 = 2.4G channel broadcast when the 0 key light flashing, back to connect / connected to the light is always on 25 after extinguished, 2.4G connection method: after pressing the FN + 0 key combination, 0 key light slow flashing, and then long press 3 seconds FN + 0 key light flashing into the code state, then insert the receiver to complete the code, 0 key light 2S, 2.4G link successfully. Note: 2.4G connection first search before inserting the receiver. Factory default has been on the code.
• Bluetooth mode BT3.0 (“BT3.0 Keyboard”) / BLE5.0 (BT5.0 KB) according to the terminal device’s Bluetooth version random broadcast, can be connected to 3 devices: FN+1=Bluetooth1 BLE3.0 (“BT3.0_1”)/BLE5.2 (BT5.2_1) 1 key light flashing fast when channel broadcast Back connected/connected both light up 2s FN+2=Bluetooth 2 BLE3..0 (“BT3.0_2”)/BLE5.2 (BT5.2_2) 2 key light flashes when the channel is broadcasted. Back-connected/connected both light up for 2s. FN+3=Bluetooth 3 BLE3.0 (“BT3.0_3″‘)/BLE5.2 (BT5.2_3) 3 key light flashes when channel is broadcast. Back connected/connected are on for 2s.
• Fn+4=wired mode flashing light 2s, (the switch at the bottom of the keyboard is the battery toggle switch).
• Fn+Esc long press for three seconds = restore default.
• Low voltage FN key flashing light prompt, constant light prompt when charging, Fn key light off when fully charged.
• Bluetooth/2.4G mode for two minutes without any operation automatically enter power saving mode, click the key to wake up the keyboard. Ten minutes into deep hibernation.
• Check the keyboard power connected to Bluetooth can be displayed on the computer.
• Keyboard brush patch need to switch to wired mode, brush after re-plugging the keyboard cable and the switch on the back of the keyboard to re-switch.

Product specification

• Product size: 120.56(L) × 82.56(W) X 37.81(H)‡0.5mm
• Product weight: Product weight about 195g, kit weight (without switches, keycap) about 129.6g
• Rated voltage: DC 3.7V (full 4.2V) Capacity: 600mAH rechargeable lithium battery
• Charging voltage/current: DC 5V === 650mA, Fully charged for about 1 hour.
• Rated current: ≤28mA @3.7V (default lighting effect) /≤12mA (backlight off)
• Endurance: ≥21hours (Default light effect) : 250hours (Turn off the backlight)

Standard shortcut description

• Press eNe ESC to restore the factory default lighting mode, and the original

Installation and use instructions

Computer system requirements:

• Wired mode: windows all operating system, Win XP, win7, win8, win10 (drivers may be required under Win95 and Win98 systems).
• Wired mode: USB port 1.1 or above is configured.
• Bluetooth mode “BT 3.0 keyboard” device name: win7 and below systems.
• Bluetooth mode “BT 5.0 KB” device name: win8, win10 and above systems.
• Bluetooth mode: Mac computer, Android mobile phone or tablet, IOS mobile phone or tablet with Bluetooth bt3.0, ble4.0, ble5.0 and above hardware.

Hardware connection.

• Wired USB supports hot plug (plug and play).
• When the Bluetooth mode is switched to the corresponding channel, it can be used by connecting the Bluetooth terminal device with the code.

Warranty description

Dear users
Thank you for purchasing this product! This warranty card is the product’s three package certificate, kept by the user himself. With this warranty card you will enjoy after-sales service for your products. Please keep it properly.

1. With this card, you will enjoy the following rights and services:
2. Return service: within seven days from the date of sale of the product, the product quality problems, according to the national “three package service” provisions In the case of product appearance and packaging integrity, the product will be returned to the seller or the designated place, with the purchase of valid documents, returned to you to pay for the product. With valid proof of purchase, return the product you paid for.
3. Warranty service: within 12 months from the date of purchase of the product performance failure situation through the after-sales service center testing to determine You can enjoy free repair services.
4. The following situations do not belong to the scope of free services:
5. Exceeding the stipulated warranty period;
6. Failure to show the valid product warranty certificate or the original serial number label of the product has been altered, replaced, torn, etc.;
7. There is no serial number on the product or the product model on the warranty certificate does not match the actual product;
8. Failure and damage caused by abnormal use, maintenance and storage;
9. Failure or damage caused by repair, replacement or disassembly of the product by maintenance personnel not authorized by our company;
10. Failure or damage caused by accident or other force majeure;
11. Services other than the products promised by the sales staff and additional accessories or gifts are not covered by this warranty service;
12. Failure or damage caused by unstable power and voltage.

User warranty card

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