... Key specificaitons / Special features :1).This hand controller can be used in different kinds of massage chair , since ... with colorful backlight , when you press it , you can see the colorful lights 4).Using 2 IC communications ... player , when you having a rest , you can also enjoy the music ,and the MP3 player is ... 6).Our company have R&D team , we can design the goods accoring to the client's needs ,and ...