1、Fingertip Rotating Toy: MP4 music player equipped with fingertip rotating toy design, you can play it with music, 2 in 1 design, effective relieve the pressure. 2、Expandable Memory: MP3 player can insert up to 128GB memory card (not included) high speed memory, and can store up to about 30,000 lossless music or about 80 movies. 3、Multifunction: Not only a music player, but also supports speaker output, calendar, picture browsing, video playback, txt format e book reading, and can also be used as a USB flash drive to classify files. 4、Hd Sound Quality: MP4 player built in HiFi lossless HD speakers, support wireless headphones to play music, plug in wired headphones, let you enjoy music anytime and anywhere. 5、Easy Button Operation: Designed with button operation, the MP4 music player is perfect for children and the elderly, compact and lightweight, and can easily fit into your purse or pocket, making it the perfect gift to friends and elders.