Student Sports Walkman $ 4.26 Model: MX-711 Memory card type: TF card Expansion card: support Operation mode: push button Interface: USB 2.0 Headphone jack: 3.5MM Support audio format: MP3 Screen resolution: 160128 Frequency response range: mp3 Battery type: lithium battery Battery capacity: 90 Life time: 4 (hours) Product size: 5.12.31.2cm Memory capacity: Card bare machine without accessories Card host + crystal box double line
