All-in-One Smart Voice Recorder
Tired of missing key points during meetings, interviews and lectures? Bulky traditional recorders are hard to carry?
N503 AI Recording Card delivers professional recording & powerful AI transcription in a card-sized lightweight body, covering business, study and interview scenarios perfectly.

Ultra-Portable Magnetic Card Design
Only 85.6*54.1*4.8mm, 35g ultra-light weight, fits easily in pockets and wallets. Built-in magnetic suction ring attaches firmly to your phone for hands-free recording.
IP67 dustproof & waterproof rating works reliably for outdoor and indoor use. 0.96-inch LCD screen displays recording time and battery status at a glance.

Dual Silicon Mics + Bone Conduction Sensor for Crystal Clear Audio
Dual silicon microphones paired with bone texture sensor block background noise like keyboard clicks and crowd chatter. Capture every word clearly in busy offices, open-air interviews and large lectures.
Dedicated recording switch & power button for one-touch operation, all recordings saved in universal MP3 format.
Long-Lasting Battery & Ample Storage
470mAh large capacity battery:
• 30 hours non-stop continuous recording for full-day meetings & interviews
• Up to 1 year ultra-long standby time
4GB SD NAND internal storage saves all audio files locally without occupying phone space. Universal Type-C charging port compatible with all power adapters & power banks.

Bluetooth 5.3 + 2.4G/5G Dual Band WiFi, Powerful AI Functions
1.Powered by ATS3089C platform, fast wireless file sync supports four core AI productivity features:
Real-time recording transcription, convert voice to text instantly
2.AI intelligent summary to extract core conversation highlights
3.Auto mind map generation for structured meeting review
4.Lossless MP3 audio recording for permanent file storage

Wide Application Scenarios
• Business staff: Meeting negotiation, client interview & efficient work review
• Students: Class lecture recording & easy text review
• Journalists & content creators: Portable field interview recording
• Legal & education workers: Secure conversation & lesson archive

Slogan
One tiny card for full-cycle information capture: Record, Transcribe, Summarize & Generate Mind Map. Boost your productivity with AI!