M15 Multi-function Smart Voice Recorder MP3 Hifi Sound Music Player Walkman, Bluetooth Version 1. Can directly play recorded files, music, or video, etc 2. Built-in FM radio, you can manually tune, automatically tune, plug in headphones to listen to the radio 3. Support e-TXT and other e-book format reading 4. Support OTG to connect mobile phones or tablets, read files anytime, anywhere 5. Under the condition of wake-up, press one key to start recording, press again to save the recording, support pauseresume recording in the middle 6. System language can switch to 28 languages including ChineseEnglish, Japanese, Korean, French, etc 7. Support bluetooth headsets, bluetooth speakers, bluetooth data transmission, bluetooth is available, the signal is stable 8. Playing time: about 50 hours 9. Display size: 2.4 inches 10. Recording time: about 60 hours 11. Product size: 109x50x10mm 12. Weight: about 46g