Brand Name: EDUP
Origin: Mainland China
External Memory: Yes
Audio Format Support: MP3, WAV
Certification: NONE
Balanced Out: Yes
Model: M13
Material: CNC metal one, double curved glass screen
Color: black
Built-in memory: 8G
Resolution: :128*160
Bluetooth-compatible version: :CSR 4.2
Battery power: 800mAh
Frequency response: 20Hz-20KHz
Charging time: About 1.5 hours
Play time: 48 hours
Reading time: 78 hours
Distortion: <0.008%
Recording format: MP3/WAV
Play format: MP3/WMA/WAV/APE/FLAC
Signal to noise ratio: >90db
Size: 8.5*4*0.7cm / 3.3*1.6*0.3inch