Features: High-Definition Audio Quality: This digital voice recorder can record with 1536kbps M A V format, ensuring clear, high-quality sound. It also comes with a powerful DSP noise reduction chip to effectively reduce background noise for immaculate audio capture. Long Recording Time and Massive Storage: With a 64GB memory card included, the recorder provides up to 288 hours of recording time at 512kbps. The rechargeable built-in lithium battery ensures up to 18 hours of usage time. User-Friendly Design: This recorder features a TFT color screen for clear display, supports headphone connectivity for private listening, and has an inbuilt speaker for hassle-free playback. It also enables voice-activated recording and segmental recording (30min/60min/90min) for your convenience. Secure & Private: A unique feature of this digital voice recorder is its password protection setting, enabling you to keep your recordings confidential. This adds an extra layer of security for your sensitive information. Versatile Usage & Comprehensive Package: Perfect for students, teachers, business and more, this device comes with an earphone cable included in the package. Plus, with its compact size and design, it's easy to carry around wherever you go. Specification: Model: G4 Screen: 128 x 128 dot 0.96 inch TFT colour screen Data interface: Mini 5PIN USB2.0 Support External memory: 4GB - 128GB Battery: 3.7V/210MAh Polymer Discharging Time: about 18hrs Music format: MP3 format 32Kbps-128Kbps Recording format: WAV format 512kbps -1536kbps Headphone output Maximum output: 2X20MW(16ohm) Frequency response: 20Hz to 20KHz signal to noise ratio: 90dB Distortion: 0.05% Distortion: -5 to 45 Support computer system: Windows 98 /2000/XP/ 7/10 Material: plastic colour: black Package Contents: 1 x Voice Recorder 1 x 64GB Memory Card 1 x Earphone 1 x Micro-USB Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.