Surmen GT61 Mechanical Keyboard User Manual
Instructions for Use
1.1.1 Power and Charging Instructions
When the battery voltage is lower than 3.4V, the red light of the ESC key flashes quickly. Insert the TYPE-C data cable to enter the charging state; the red light remains on. The current light effect will be restored when the battery is full.
1.1.2 Connection Mode Indication
- FN+Y Wired Mode: After successful connection, the blue backlight of the entire keyboard flashes three times, then returns to the current light effect.
- FN+E Bluetooth Mode 1: The button indicator lights green. The green light of the E key flashes quickly when broadcasting, and flashes slowly when connected. The current light effect is restored after a successful connection.
- FN+R Bluetooth Mode 2: The button indicator lights blue. The blue light of the R key flashes quickly when broadcasting, and flashes slowly when connected. The current light effect is restored after a successful connection.
- FN+T Bluetooth Mode 3: The button indicator lights yellow. The yellow light of the T button flashes quickly when broadcasting, and flashes slowly when connected. The current light effect is restored after a successful connection.
1.1.3 Bluetooth Pairing
Long press the FN+E/R/T combination key for 3 seconds. The keyboard enters the code matching state, and the backlight flashes quickly. If the device is connected, the backlight returns to normal. If not connected, the backlight turns off, and the keyboard enters sleep mode.
1.1.4 Reconnect Instructions
After the keyboard is turned on or wakes up from sleep, it will attempt to reconnect to the last connected device. If reconnection fails, it will go to sleep. Pressing a key during reconnection will extend the reconnection time. If reconnection fails within 10 seconds of the last button release, the backlight turns off, and the keyboard enters sleep mode. If pairing fails, the keyboard will retain the last successful pairing data and enter sleep mode. The backlight flashes slowly during Bluetooth reconnection and returns to normal after connection.
1.1.5 Additional Modes
- CAPS Mode: The CAPS Lock indicator light turns red when activated. The current light effect is restored when turned off. (For Apple devices, hold Shift to enter capital letters.)
- FN+WIN: Lock WIN Key: Toggles the WIN key lock mode. The indicator light turns red when locked and restores the current light effect when unlocked.
1.1.6 Equipment Name
- Display after BT3.0 connection: BT3.0 KB
- Display after BT5.0 connection: BT5.0 KB
1.1.7 Service Distance
>10m 360° (under external environment interference)
1.1.8 Bluetooth Connection Time
Less than or equal to 5 seconds
1.1.9 Compatibility
Bluetooth: Compatible with all Bluetooth dongles on the market. Bluetooth 5.0 requires Windows 8 or later, tablets, and mobile phones.
1.1.11 Electrical Specifications (for reference only)
| Recharging current | 800mA |
| Maximum brightness current of wire | 170mA |
| Bluetooth 3.0 maximum brightness working current | 95 mA |
| Bluetooth 3.0 sleep current / Deep sleep current (Enter deep sleep after 30 minutes of standby) | 0.58mA/0.34mA |
| Bluetooth 5.0 maximum brightness working current | 95mA |
| Bluetooth 5.0 sleep current / Deep sleep current | 0.58mA/0.34mA |
1.1.12 Scheme Framework
ry501+bk3632
1.1.13 Working Voltage
3.7V
1.1.14 Working Mode
Wired, Bluetooth 3.0, Bluetooth 5.0
1.1.15 RF Power
The RF power of the keyboard is 1.05 dBm; that of the receiver is 1.05 dBm.
1.1.16 Operating Frequency
2402MHz-2480MHz
1.1.17 System Requirements
Interface: USB
Operating System: Compatible with Windows 2000 or above and Mac operating systems. Bluetooth 5.0 supports Windows 8 or above.
Combination Key Description
| Combination Keys | Function | Combination Keys | Function |
|---|---|---|---|
| FN+ESC | Switch lights | FN+U | PRT SCR |
| FN+1 | F1 | FN+I | SerLk |
| FN+2 | F2 | FN+O | PAUSE |
| FN+3 | F3 | FN+J | INS |
| FN+4 | F4 | FN+K | HOME |
| FN+5 | F5 | FN+L | PageUp |
| FN+6 | F6 | FN+, | End |
| FN+7 | F7 | FN+-> | PageDown |
| FN+8 | F8 | FN+/? | T |
| FN+9 | F9 | FN+Right Alt | T |
| FN+0 | F10 | FN+Right Ctrl | T |
| FN+- | F11 | FN+Menu | ; |
| FN+ | F12 | FN+\\ | Switch backlight color |
| FN+Win | Win key lock/unlock | FN+TAB | Switch backlight color |
| FN+TAB | Switch backlight color | FN+; | brightness- |
| FN+' | brightness+ | FN+[ | speed- |
| FN+] | speed+ | FN+F | Mute |
| FN+A | Pause playback | FN+G | volume- |
| FN+S | Previous piece | FN+H | volume+ |
| FN+D | Next track | FN+Spacebar | Enter the second mode (turn on all secondary functions except B1, B2, B3, USB as the main function, and the space bar indicator lights up in white). Press the space bar to close the second mode. When the second mode is closed, the space bar restores the current light effect. |
| FN+Right Shift | (Turn on the direction key as the main function, SHIFT key bright white light) Press FN+Right SHIFT again to turn off, the current light effect of SHIFT key when it is off. | FN+Backspace | (Turn off the light/press again to turn on the light) |
| FN+TAB | Switch the backlight color. The color sequence is: red, yellow, green, ice blue, blue, purple, white, mixed light. | FN+"\| | Adjust the backlight mode. The mode sequence is: always on (default), breath, neon, light wave, ripple, snake, follow. |
| FN+Spacebar | Enter the second mode. Press the spacebar to close. | FN+Right Shift | Turn on/off the direction key as the main function. |
| FN+Backspace | Turn on/off the light. |
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.
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.
Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.