Product information:  

External card!

(Support up to 32GB TF)

tiny! With screen

Connect headphones to listen to MP3 directly.

Recording format: WAV

Recording bit rate: 192kbps

Continuous recording: 20 hours

Power supply: 3.7V 200mAh

Size Information:  

Product size: 7x1.8x1.1 (mm)

packing list:
Headphone, data cable, manual, carton packaging