Mrobo RV-19 0.96-inch HD Screen 3D Noise Reduction Recording Pen Music Player Features: 1. 3D noise reduction microphone, 3072K recording, eight levels of noise reduction 2. Support in-APP recording and transcription 3. Support OTG connection for mobile phone downloads 4. Recording encryption protection, you can set a 6-digit password. Without the password, you cannot turn on the phone to protect the content from being leaked. 5. Support music playback Product parameters: 1. Material: zinc alloy, PC plastic 2. Chip: Actions 3. Supported languages: Simplified Chinese, Traditional Chinese, English, German, Japanese, Korean, Spanish, French, Arabic, Czech, Greek, Persian, Italian, Dutch, Polish, Portuguese, Russian, Finnish, Swedish, Thai Hungarian, Slovak 4. Capacity: 4G8G16B32G64G128G 5. Screen size: 0.96 inches, 80 x 160 TFT color screen 6. Recording format: WAV, MP3 (adjustable) 7. Recording distance: about 5 meters in a straight line (optimal) 8. Bit rate: 32kbps, 128kbps, 192kbps, 512kbps (default), 1536kbps, 3072kbps 9. Music format: MP3WAVWMAAPEFLAC 10. Transmission interface: MICRO-5PIN-USB2.0 11. Headphone output: 3.5MM two-channel stereo 12. Headphone specifications: supports ordinary three-sectionfour-section headphones, headphone impedance 16 ohms or 32 ohms 13. Headphone output power: 10mW@32 ohm, 20mW@16 ohm 14. Built-in battery: 3.7V 230mAh polymer lithium battery 15. Battery life for audio playback: about 25 hours for headphone playback and 3-7 hours for external playback (depending on the volume) 16. Audio recording battery life: 25 hours of continuous recording (recording quality and noise reduction level will vary) 17. 8GB memory recording storage time: 64kbps about 360h, 512kbps about 45h, 1536kbps about 15h 18. Charging voltage: USB 5V 19. Charging current: 300mA-1000mA 20. Charging time: about 2-3 hours 21. Product size: 98 x 22 x 9mm 22. Net weight: 65 grams Packing list: -Recorder x 1 -Data cable x 1 -War