KENSEI
A real bokken. Real training. Unreal sound.
Philosophy
Every training weapon is silent. Yours won't be.
Kensei is a full-weight bokken built for contact training — hardwood blade, steel-reinforced handle, traditional balance. Inside the tsuka: a 6-axis sensor that reads your movement a thousand times per second and translates it into sound. A fiber optic edge glows through the blood groove. A microphone captures your voice so every technique is tagged in your own words. Not a toy. Not a prop. A weapon that teaches.
Capabilities
An IMU reads your swing 1,000 times per second. The whoosh pitches with your speed. Stop hard — hear the clash. Latency under 20ms. Your blade responds before your brain registers the strike.
Bluetooth streams every cut, thrust, and transition to your device. Velocity curves. Angle of attack. Acceleration profiles. Train alone with the feedback of a sensei watching.
Standard 14500 Li-ion cell. Twist the bayonet cap, swap, twist back. No downtime. No proprietary batteries. Hours of training on a single charge.
16MB of onboard flash. Upload new sound profiles over Bluetooth or WiFi. Classic saber. Katana steel. Sci-fi plasma. Your dojo, your soundtrack.
A built-in microphone lets you call your technique mid-session. Say "chudan no kamae" or "men uchi" — your voice is timestamped against the motion data. Review your session with every posture and strike annotated in your own words.
A fiber optic cable runs through the bo-hi — the traditional blood groove carved along the blade. One RGB LED in the handle lights the entire edge. The color shifts with your movement. Sealed in clear epoxy. No electronics in the blade. Nothing to break.
Not a Toy
Specifications
構え
Kamae — Ready Position
You're on the list. First strike is yours.
First production run limited to 50 units