Function:
This MP4 has a built-in capacity of 16G and can also support the insertion of a TF card additionally. Maximum support for 128G memory card
* It supports Bluetooth function, can only link Bluetooth headset and Bluetooth stereo, can not link cell phone Bluetooth.
MP4 connected computer can only support Windows 7 system, does not support Apple system.
Android phones need to have OTG function to connect, Apple system does not support.
Smart phones with OTG function can use OTG adapter link to download, download MP3 format music can be used!
MP3 music and video format support tips.
Audio format support: MP3 format.
Video format support: built-in capacity models support AMV, stand-alone plug-in version supports AVI.
[Downloading video requires a conversion tool to convert the video format].

Specification:
Storage capacity: 64G card
Maximum output power: 18mW*2
Frequency Response Range: 20Hz-20KHz
Signal-to-noise ratio (dB): 90
Total harmonic distortion: less than 0.05%
File access function:
Battery type: built-in lithium battery (built-in)
Screen size: 1.8-inch color screen
Playback time (hours): about 6 hours
Standby time (hours): more than 24 hours
Audio format support: wav/mp3
Support listening to music, watching video, audio recorder (wav), e-book (txt format)
3.5 mm audio jack.
Input: 5.0V, 500MA 600MAH battery
Built-in capacity models are available in a variety of menu languages:
Simplified Chinese, Traditional Chinese, English, Russian, French, Spanish, Portuguese, Japanese, Korean, Indonesian, Dutch, French, Italian, Danish, Hungarian, New Zealand, Norwegian, Finnish, Turkish, Chinese, and more.