SD Card Speaker
1)MP3 Player
2)Speaker
3)Alarm whistle

SD Card Speaker.

6)-Portable memory: Have inserted TF or SD memory card or comes with memory.

 5)-For bike: This machine has a user-friendly bicycle clip.

 4)-Flashlight: Have dim light, glare, blinker and other file regulatory function. 

3)-Alarm whistle 

2)-Speaker 

1)-MP3 Player  Product Description .