Ultra-thin Card Digital Audio Voice Recorder 16gb Voice Activated

The Ultra-thin Card Voice Recorder is a credit-card-sized audio recorder just 4mm thick — slim enough to slip into a wallet, notebook, or shirt pocket without a trace. Built from robust zinc alloy with a 750mAh battery delivering up to 120 hours of continuous recording, it's the ideal choice for professionals, students, and anyone who needs serious recording capacity in the most discreet form factor possible. 🔍 Key Features 💳 Credit Card Size: 86 × 54 × 4mm — fits in a wallet or notebook 🔋 120-Hour Battery: Exceptional battery life for multi-day recording without recharging 💾 16GB Internal Memory: Stores up to 88 hours of high-quality audio 🎙️ 192Kbps CD-Quality Audio: 48kHz sampling for clear, detailed recordings 🔊 Voice-Activated Mode: Starts recording when sound is detected; pauses in silence 🔴 One-Button Operation: Simple controls for recording, playback, and file management 💪 Zinc Alloy Body: Durable metal construction for long-term reliability 💻 PC & Mac Compatible: USB 2.0 for charging and data transfer; no drivers needed 📐 Technical Specifications Dimensions: 86 × 54 × 4mm (credit card size) Battery: 750mAh built-in Battery Life: Up to 120 hours continuous recording Memory: 16GB internal Storage Capacity: Up to 88 hours of audio Audio Quality: 192Kbps, 48kHz Audio Formats: MP3, WMA, WAV USB: 2.0 OS Compatibility: Windows 98/Me/Vista/XP/7; Mac compatible 🎯 Best For Use Case Why It Works 💼 Professionals & executives Slips into a suit pocket or briefcase; 120-hour battery covers days of meetings 🎓 Students & researchers Credit card size fits in a notebook; voice activation captures only the lecture ⚖️ Legal & evidence recording Zinc alloy build is durable; WAV format provides uncompressed audio quality 🔒 Covert recording At 4mm thick, it's virtually undetectable in a wallet, book, or pocket 🌍 Travel & fieldwork 120-hour battery means weeks of standby; no need to charge daily ❓ Frequently Asked Questions Q: How thin is it really? A: Just 4mm — thinner than most smartphones. It fits flat in a wallet, inside a book, or in a shirt pocket without any visible bulk. Q: How does 120 hours of battery work? A: The 750mAh battery combined with efficient audio encoding delivers up to 120 hours of continuous recording. In voice-activated mode, practical battery life extends further as the device pauses during silence. Q: How is this different from the Mini LCD recorder? A: The Card Recorder is thinner (4mm vs 7mm), has a much longer battery (120hrs vs 16hrs), and is credit-card shaped for wallet storage. The Mini LCD recorder has a screen showing recording status and supports scheduled recording. Choose the Card Recorder for maximum battery and discretion; choose the LCD model if you want visual confirmation and scheduling. 📦 What's Included Ultra-thin Card Voice Recorder (16GB) USB Data & Charging Cable Earphones Basic User Manual (English) ⚠️ Legal Notice Warning: This product must only be used for lawful purposes. Recording individuals without their knowledge or consent may be illegal. Always check and comply with applicable laws.