Little spaceship mp3 player

Screen size: no display (inch)
Storage card type: TF Card
Expansion card: support
Operation mode: button type
Interface: USB 2.0
3.5mm headphone interface
Support audio format: MP3
Screen color: None
Screen resolution: 160 × 128
Battery type: lithium battery
Battery capacity: 90
Endurance time: 4 (hours)
Product size: 7.7 * 2.9 * 2.3 cm