AJAZZ K620T Bluetooth Dual-Mode Mechanical Keyboard

1. Basic Parameters

• Product Model: K620T
• Battery Capacity: 4400mA rechargeable lithium battery
• Interface Type: Type-c
• Transmission Method: USB wired and Broadcom Bluetooth 3.0
• Product Size: 298.7mm x 137.6mm x 45.7mm ± 1mm
• Product Weight: 810g ± 10g
• Wire Length: 1.5M
• Matrix: Full key N-key rollover support in Bluetooth and wired modes
• Backlight: RGB backlight (19 lighting effects)
• Key Layout: 61-key (detachable cable)
• System Requirements: Win7/Win8/Win10/Android/IOS/Mac

2. Indicator Light Description

• Indicator 1 (A): Caps Lock indicator, monochromatic white light.
• Indicator 2 (BT): Pairing/Device switching indicator, RGB light. FN+Q = Green light, FN+W = Blue light, FN+E = Red light.
• Indicator 3 (4): Charging indicator, RGB light. Red light while charging, Green light when fully charged.
• Indicator 4 (⚡): Low battery warning light. Flashes red quickly when battery is low, backlight automatically turns off. Stops flashing when connected to power.

3. Switch Description

The switch toggles between wired and Bluetooth modes.

• BT: Enter Bluetooth mode.
• OFF: Power off state.
• Wired Mode: Push the switch up and connect the Type-C data cable to the computer to use.

4. Bluetooth Pairing

Select one of the Bluetooth groups via FN+Q/W/E. Press and hold for 3 seconds; the corresponding indicator light flashes quickly, indicating entry into Bluetooth pairing mode. Your computer/mobile phone should search for and connect to the device. The corresponding indicator light stops flashing upon successful connection.

• FN+Q: Switch to Device 1. Indicator flashes green once to indicate switching. Press and hold for 3 seconds for pairing; indicator flashes green quickly.
• FN+W: Switch to Device 2. Indicator flashes blue once to indicate switching. Press and hold for 3 seconds for pairing; indicator flashes blue quickly.
• FN+E: Switch to Device 3. Indicator flashes red once to indicate switching. Press and hold for 3 seconds for pairing; indicator flashes red quickly.

Battery Life (Bluetooth Mode): Approximately 50 hours with backlight on, approximately 880 hours without backlight. Charging time is approximately 5 hours. Standby time is approximately 88,000 hours.

Power Saving: In Bluetooth mode, the keyboard backlight automatically turns off after 10 minutes of inactivity. After 30 minutes of inactivity, the keyboard enters a deep sleep state, and the Bluetooth device connection is lost. To wake the keyboard, simply press any key.

5. Knob Function Keys

• Turn left: Decrease volume.
• Turn right: Increase volume.
• Press: Mute.

6. Combination Key Functions

• FN + ESC = [System function]
• FN + 1! = F1
• FN + 2 = F2
• FN + 3 = F3
• FN + 4 = F4
• FN + 5 = F5
• FN + 6 = F6
• FN + F7 = F7
• FN + F8 = F8
• FN + F9 = F9
• FN + 0 = F10
• FN + - = F11
• FN + = = F12
• FN + Z = Previous song
• FN + C = Next song
• FN + X = Play/Pause
• FN + B = Windows: Open homepage; Mobile: Return to desktop.
• FN + V = Lock screen (WIN+L)
• FN + ? = Direction Up
• FN + Right APP = Direction Down
• FN + Right ALT = Direction Left
• FN + Right CTRL = Direction Right
• FN + [ = Brightness adjustment (6 levels + off). Indicator flashes 3 times at minimum/maximum brightness.
• FN + ] = Lighting effect speed adjustment (6 levels + pause). Indicator flashes 3 times at minimum/maximum speed.
• FN + , | = Lighting effect cycle (19 effects, default: "follow the wave").
• FN + Right Shift = Swap direction keys and function keys.
• FN + Left CTRL = Swap number pad and F-key row. Default: F-keys require FN. After swap: Number pad requires FN.
• FN + Space (long press 4s) = Restore factory settings, clear all configurations.
• FN + Q/W/E = Bluetooth device switching (supports and stores 3 Bluetooth devices). Indicator flashes once upon successful switch.

7. Product Warranty

Thank you for trusting and supporting AJAZZ products. To ensure your peace of mind and protect your rights, AJAZZ strictly adheres to relevant regulations for after-sales service.

1. Service Validity: 12 months from the date of purchase for quality assurance.

2. Service Content: Service provided according to regulations for repair, replacement, and return of micro-computer commodities.

3. Not Covered by Service:

• a. Beyond the valid service or free repair period.
• b. Faults or damage caused by failure to use, maintain, or store the product correctly according to instructions.
• c. Faults or damage caused by repairs not performed by AJAZZ authorized service centers.
• d. Products without dealer information and stamp on the warranty card.
• e. Tampering with the contents of the warranty certificate.
• f. Product defects caused by force majeure (e.g., natural disasters).
• g. Product defects caused by human factors (e.g., operational errors, impacts, incorrect voltage input).
• h. Faults or damage caused by issues other than product design, technology, manufacturing, or quality.

Certificate of Conformity:

Executive Standard Number: Mouse GB/T 26245-2010, Keyboard GB/T 14081-2010, Headset GB/T 14471-2013.

Manufacturer: Shenzhen Ajazz Tongchuang Electronic Technology Co., Ltd.

Address: 2nd Floor, Building A, No. 102, Beitian Road, Gongming Town, Guangming New District, Shenzhen.

Phone: +86-755-2740 7340

Please keep this certificate properly as it is an important basis for AJAZZ product after-sales service.

For any product issues, you can scan a QR code (not included here) to consult the WeChat official account editor.

8. FCC Caution

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.