Section A: Connecting via 2.4 GHz USB Receiver

Step 1: Turn ON the Keyboard
Turn on the keyboard and slide the switch to 2.4 GHz mode.

Step 2: Insert the USB Receiver
Insert the USB receiver (dongle) into the USB port of your laptop or desktop.
The keyboard will connect automatically (no pairing required).

Step 3: Connection Check
The keyboard should start working immediately.

If it does not respond:

• Reinsert the USB receiver

• Try another USB port

• Ensure the keyboard is powered ON

Section B: Connecting via Bluetooth

The Bubble 3.0 keyboard supports up to 3 Bluetooth devices (BT1 / BT2 / BT3).

Step 1: Turn ON Bluetooth Mode
Turn the keyboard ON and slide the switch to BT mode.

Step 2: Select Bluetooth Channel

• Fn + 1 → BT1

• Fn + 2 → BT2

• Fn + 3 → BT3

Step 3: Enter Pairing Mode
Press and hold the selected key (Fn + 1 / 2 / 3) for 3–5 seconds until the indicator light starts blinking.

Step 4: Connect on Your Device

For Windows

1. Open Settings → Bluetooth & Devices

2. Turn Bluetooth ON

3. Click Add Device → Bluetooth

4. Select Bubble 3.0 BT1 / BT2 / BT3

5. Click Connect

For macOS

1. Open System Settings → Bluetooth

2. Turn Bluetooth ON

3. Select Bubble 3.0 BT1 / BT2 / BT3

4. Click Connect

Step 5: Connection Confirmation
Once connected:

• The indicator light stops blinking

• The keyboard will start working normally.