Brief Me. I'll Handle the Conversation.
Tell your AI what to say before you walk in the room. One touch activates your personal conversation agent — it listens, understands context, and speaks on your behalf in real time.
Join 2,400+ people on the waitlist
Three moments. One device.
Larx disappears into your skin — and speaks when you need it most.
Walk in. Let Larx talk.
Brief your AI before the event. One touch — it introduces you, holds the conversation, and knows when to stop.
How Larx Works
Three steps separate you from a conversation handled entirely on your behalf.
Brief Your AI
Open the app and create a Mission Briefing. Tell your AI the objective, define its persona, load it with the knowledge it needs, and set the boundaries it must respect. Think of it as briefing a trusted spokesperson before a meeting.
One Touch to Activate
When the moment arrives, double-tap the touch-sensitive area on the neckband. The LED shifts to a steady teal glow. Your AI is now live — listening to the conversation through the four-microphone array, processing context in real time.
AI Speaks. You Stay Present.
Your AI listens, understands the full conversational context, and responds naturally — in your cloned voice, within the boundaries you set. You stay present and in control. Single-tap at any moment to take over. The AI becomes your silent co-pilot.
Your AI. Your Scenarios.
Every Mission Briefing is a different version of you — tailored to the moment.
Walk into any room with confidence.
Before a networking event, brief your AI: your name, role, what you're looking for, and how you want to come across. When you approach a group, double-tap the neckband. Your AI delivers a natural, confident introduction — and keeps the conversation going, answering questions, making connections, all in your voice.
Example Mission Briefing
Built for Real Conversations
Every component — hardware and software — is engineered around one goal: making AI conversation feel completely natural.
4-Mic Array
Beamforming technology isolates the voice of whoever is speaking to you, filtering out ambient noise with AI-powered suppression.
Upward-Radiating Speakers
Dual speaker units at the collar project sound upward toward your jaw, creating a natural voice field that listeners perceive as coming from your head.
<500ms End-to-End
Streaming ASR → LLM → TTS pipeline delivers responses in under half a second. Conversations feel natural, not robotic.
Hybrid On-Device / Cloud
A low-power MCU handles always-on wake detection locally. Cloud inference activates only when you trigger a task — protecting your privacy.
Mic-Off Mode
Single tap disables the microphone entirely. A red LED confirms absolute silence. Your conversations are never recorded without your knowledge.
Voice Cloning
Record 60 seconds of your voice. Our model learns your timbre, cadence, and speech patterns. Your AI speaks as you — not as a robot.
Technical Specifications
Weight
38g
Battery Life
24h active
Connectivity
Bluetooth 5.3
Microphones
4× MEMS array
Latency
<500ms
Water Resistance
IPX4
Charging
USB-C, 90min
Compatibility
iOS & Android
Hardware + Subscription
The neckband is a one-time purchase. The AI service that powers it is a monthly subscription.
Larx Neckband
One-time purchase. Includes 3 months of Pro subscription free.
Essential
For individuals exploring AI-assisted conversation.
- 120 minutes of live AI conversation/month
- Up to 5 Mission Briefings
- Standard voice (not cloned)
- Basic persona templates
- iOS & Android app
Pro
For power users who want their AI to sound exactly like them.
- Unlimited live AI conversation
- Unlimited Mission Briefings
- High-fidelity voice cloning
- Custom persona creation
- Priority cloud inference
- Conversation history & analytics
- Early access to new features
All subscriptions include a 30-day free trial. Cancel anytime.