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WhatGeek x FirstBlood B81 Crystal Transparent Wireless Mechanical Keyboard

Firstblood B81

The Firstblood B81 Crystal is a compact 75% mechanical keyboard designed for users who want a visually distinctive, transparent design combined with versatile switch customization. It suits hobbyists and gamers who value a unique aesthetic and the ability to swap switches without soldering. Its wireless and wired connectivity options make it flexible for different setups.</p... Read more
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FirstBlood B81 Transparent Mechanical Keyboard

Firstblood B81 - Transparent / Crystal Jelly
Mechkeys
Ships to US
$189

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Compare Firstblood B81 vs Tars Work Tars T1 vs WOBKEY PMOKEY Wave 75 Specification

Compare similar keyboards side by side, or use the comparison table to compare all keyboards!
Firstblood B81Tars Work Tars T1WOBKEY PMOKEY Wave 75
70
WhatGeek x FirstBlood B81 Crystal Transparent Wireless Mechanical Keyboard
-16% off
79
Tars T1 Wireless Mechanical Keyboard - Premium Aluminum 84-Key Setup
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PMOKEY Wave 75 Keyboard Kit
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  • Released in 2023
  • Provides dedicated media keys
  • Includes screw-in stabilizers
  • Equipped with a 3750 mAh battery
  • Weighs about 1500 g
  • Sized at 100 x 480 x 220 mm
  • Made with a Acrylic case
  • Features PC, PBT, ABS keycaps
  • Offers Yes, North-face, Rgb RGB lighting
  • Includes a Yes display
  • Supports VIA configuration
  • Features N-key rollover
  • Weighs about 2045 g
  • Sized at 36 x 356 x 137 mm
  • Features PBT keycaps
  • Offers Yes, Rgb RGB lighting
  • Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Scores
  • Performance: 68.3
  • Build Quality: 70.1
  • Productivity: 91.4
  • Customizability: 79.2
  • Portability: 82.9
Scores
  • Performance: 79.6
  • Build Quality: 71.6
  • Productivity: 62.4
  • Customizability: 78.3
  • Portability: 73.2
Scores
  • Performance: 63.5
  • Build Quality: 71.8
  • Productivity: 75.7
  • Customizability: 74.6
  • Portability: 79.9
Name
Firstblood B81
Name
Tars Work Tars T1
Name
WOBKEY PMOKEY Wave 75
Release year
2023
Release year
2026
Release year
2026
Switch Options
Linear
Switch Options
Linear
Switch Options
-
Profile
Normal Profile
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
75%
Layout Size
75%
Layout Standard
ANSI
Layout Standard
ANSI
Layout Standard
ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Knob Support
 
Display Support
 
Display Support
 
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
USB passthrough
 
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
-
Polling Rate
-
Polling Rate
-
Battery capacity
3750 mAh
Battery capacity
-
Battery capacity
-
Hall Effect Support
 
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
Gasket Mount
Mount Style
-
Mount Style
Gasket Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
North-face, Rgb
Backlight
 
Rgb
Backlight
 
Rgb, South-face
Case Colors
Case Colors
Case Colors
Case Material
Acrylic
Case Material
Aluminum
Case Material
Aluminum
Keycaps Material
PC, PBT, ABS
Keycaps Material
PBT
Keycaps Material
-
Dimensions
100 x 480 x 220 mm
Dimensions
36 x 356 x 137 mm
Dimensions
-
Weight
1500g
Weight
2045g
Weight
-
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Product Description

The Firstblood B81 Crystal is a compact 75% mechanical keyboard designed for users who want a visually distinctive, transparent design combined with versatile switch customization. It suits hobbyists and gamers who value a unique aesthetic and the ability to swap switches without soldering. Its wireless and wired connectivity options make it flexible for different setups.

Key Features

  • Full-key hot-swappable Kailh sockets allow easy switch replacement or experimentation without tools.
  • Includes letter stickers with transparent backgrounds, letting users choose whether to display legends on keycaps.
  • Crystal damping knob offers tactile feedback and ergonomic control, beneficial for gaming and precise input.
  • Bluetooth 5.0, 2.4G wireless, and wired connectivity provide multiple connection modes for convenience.

Build Quality

  • Constructed with a precision-drilled acrylic surface for high translucency and durability.
  • Gasket mounting structure reduces typing noise and vibration, improving acoustic comfort.
  • Ultra-high PC keycaps with FCSA profile support a consistent typing feel and durability.

Typing Experience

  • Linear Kailh Ice Star Jelly switches require moderate force, suitable for smooth keypresses without tactile bumps.
  • Gasket mount softens keystrokes, reducing harsh feedback and noise.
  • Customizable switch options allow users to tailor typing feel to personal preference.

Compatibility

  • 75% layout with 81 keys fits compact desk setups while retaining essential keys.
  • Compatible with Windows and Mac systems.
  • North-facing LEDs improve compatibility with keycap designs that have side legends or translucent elements.

Trade-offs

  • Transparent acrylic case may show dust and fingerprints more easily than opaque designs.
  • Linear switches may be less suitable for users who prefer tactile or clicky feedback.
  • Unknown battery life and latency details for wireless modes.

Frequently Asked Questions (FAQ)

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