[ multi-purpose] Recorder, MP3, U disk, key multi-function buckle , beautiful appearance, lightless and silent, recording anytime and anywhere, can be used for work, study, etc., especially in evidence collection, small and difficult to be discovered, big role plays a very important role. [High-definition recording] Adopts advanced third-generation recording main control chip, equipped with high-quality noise reduction algorithm, reduces environmental noise, and makes the recording sound clearer and more natural. [Voice-controlled recording] Audio recording, silent automatic sleep, improve efficiency, save memory and power. One-button recording, simple to understand, simple to operate. [Multi-function recording] Power-on recording, 50-meter long-distance recording, power-off protection, timestamp, ultra-long standby, timestamp memory, noise elimination, MP3 player, U disk use, etc. [Wide range of uses] Suitable for outdoor listening to music, sports, cycling, etc., the recorder function can also be applied to lectures, conferences, interviews, and other ideal choices. This is an excellent gift for teachers, students, lawyers, writers,etc. Product name: Voice Recorder Product model: S23 Recording format: WAV Playback format: WAV/WMA/MP3 Sampling frequency: 48KHZ Recording bit number: 192KBPS Memory capacity: 8GB Battery capacity: 200mAh Charging time: 1 hour Recording time: 36 hours Music playback: 12 hours Standby time: 30 days Charging interface: 3.5MM Headphone interface: 3.5MM Product features: MP3 player,keychain design, voice activation, noise cancellation, timestamp, LED display. Colour:Black Material:ABS Package Contents: 1 x Keychain MP3 Player 1 x charging 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.