1. Introducció
The Cellet Ultra Slim Folding Wireless Keyboard is designed for convenience and functionality, allowing you to compose correspondence with accuracy and ease across various devices. Its foldable, ultra-slim, and lightweight design makes it an ideal portable accessory for smartphones, tablets, laptops, and computers.

Image: The Cellet Ultra Slim Folding Wireless Keyboard in its unfolded state, ready for use.
2. Instruccions de seguretat importants
- Before using this product, read all the instructions carefully and keep them for future reference.
- This product can be used by children and people with physical, sensory, or mental disability or lack of experience and knowledge if they have been given proper supervision or instruction concerning the use of the appliance in a safe way and understand the hazards involved.
- La neteja i el manteniment no els han de fer els nens sense supervisió.
- Els nens han de ser supervisats per assegurar-se que no juguin amb l'aparell.
- Keep product away from fire or excessively hot areas.
- For indoor use only. Do not expose to water, excess moisture, or snow.
- Do not place product in or near inflammable, explosive, or hazardous objects.
- Do not damage product with damaged cord or plug.
- Do not use product if it has been damaged in any way.
- No desmunteu el producte. El desmuntatge pot comportar un risc de perill de seguretat.
- Do not throw or shake product.
3. Producte i accessoris
El paquet inclou els articles següents:
- Cellet Ultra Slim Folding Wireless Keyboard
- Cable de càrrega USB-C
- Manual d'usuari
- Keyboard case (doubles as a smartphone or tablet stand)

Image: The complete contents of the product package, showing the keyboard, USB-C cable, and the keyboard case which functions as a stand.
4. Abans del primer ús
Before using your keyboard for the first time, ensure it is fully charged. Connect the provided USB-C cable to the keyboard's charging port and a power source. Charge the keyboard for approximately 1.5 to 2 hours.
Llum indicador de càrrega:
- Vermell intermitent: Battery low, needs charging.
- Glowing Red: Carregant.
- DESACTIVAT: Totalment carregat.
5. Keyboard Specifications
| Característica | Descripció |
|---|---|
| Versió sense fil | 5.1 |
| Distància d'operació | Fins a 10 metres |
| Sistema de modulació | GFSK |
| Vol. Operatiutage | 3.0-4.2V |
| Corrent de funcionament | <3.0 mA |
| Corrent d'espera | <0.3 mA |
| Corrent del son | <40uA |
| Corrent de càrrega | > 200 mA |
| Temps d'espera | Uns 100 dies |
| Temps de càrrega | 2 hores |
| Capacitat de la bateria de liti | 110 mAh |
| Temps de treball ininterromput | >40 hores |
| Durada de la bateria de liti | 3 anys |
| Lithium Battery Dimensions | 3.0 * 35 * 23 mm |
| Força clau | 50-80 g |
| Vida clau | 3 milions de cops |
| Temperatura de treball | -10 ~ +55 ℃ |
6. Pairing Steps
Follow these steps to pair your keyboard with your device:
- Open the keyboard. The status indicator light will be on for 3 seconds and then turn off.
- Premeu Fn + C (Bluetooth) keys. The Bluetooth indicator light will start blinking.
- Activate Bluetooth function on your device and search for available devices.
- Select "Cellet BKP200 Keyboard" on your device to connect.
- Once connected, the Bluetooth indicator light will turn off.
Canvi entre dispositius:
This keyboard supports connecting to multiple devices. To switch between paired devices, press and hold the Fn key and then short press 1 or 2 key to switch between devices.

Image: A page from the user manual detailing the pairing process and various function keys.
Video: Demonstrates the Bluetooth keyboard for phone, showing how to connect and use it with a smartphone.
7. Instruccions de funcionament
The keyboard features several function keys and shortcuts for enhanced productivity across different operating systems.
Universal Function Keys:
- Fn+F1: Pista anterior
- Fn+F2: Baixa el volum
- Fn+F3: Puja el volum
- Fn+F4: Pista següent
- Fn+F5: Reproduir/Pausa
- Fn+F6: Canvia d'idioma
- Fn+F7: Cerca
- Fn+F8: Còpia
- Fn+F9: Enganxa
- Fn+F10: Seleccioneu-ho tot
Claus específiques del sistema:
- In Android Systems:
- PgAp: Última pàgina
- PgDn: Pàgina següent
- In iOS Systems:
- Inici: Casa
- PgAp: Cursor to the top
- PgDn: Cursor to the bottom
- In Windows Systems:
- Web navegador: Web navegador
- ESC: ESC
- PgAp: Última pàgina
- PgDn: Pàgina següent

Image: The keyboard case is shown functioning as a stand, holding both a smartphone and a tablet for convenient viewmentre escriu.
Video: A demonstration of the XK04 pocket-size portable keyboard, highlighting its compact design and ease of use in various settings.
8. Neteja i Manteniment
- Clean the keyboard with a soft, damp tela dampamb aigua o alcohol.
- Manteniu el teclat lluny d'objectes punxants.
- No col·loqueu objectes pesats al teclat.
- Do not microwave the keyboard.
- Do not force or distort keyboard.
- Keep away from oil, chemicals, or any other organic liquid.
9. Eliminació respectuosa amb el medi ambient
- Pry up plastic top and remove it completely. This action destroys the keyboard.
- Gireu la part superior i traieu la cinta de la bateria.
- Separate battery from circuit board.
- Eliminar la bateria segons les lleis locals. Reciclar les parts restants del teclat.
10. Solució De Problemes
- El teclat no es connecta: Ensure the keyboard is charged and powered on. Make sure Bluetooth is enabled on your device and the keyboard is in pairing mode (Fn+C). Try resetting the keyboard by turning it off and on, then re-pairing.
- Les tecles no responen: Check battery level. Ensure the keyboard is properly paired. Try restarting both the keyboard and your device.
- Problemes de càrrega: Use the provided USB-C cable. Ensure the power source is working. Check the charging indicator light for status.
- Connexió inestable: Ensure your device is within the 10-meter operating range. Avoid interference from other wireless devices.
11. Garantia i Suport
For warranty information and technical support, please refer to the documentation included with your product or contact Cellet customer service directly. Keep your proof of purchase for any warranty claims.