Item Type: MP3 PlayerMaterial: Aluminum AlloyBuilt in Battery: Lithium Battery 200mAhPackage List1 x MP3 Player1 x Charging Cable1 x EarphoneThe product supports a maximum memory capacity of up to 64GB, (note: this card is not included), it is recommended to use the MYMAHDI original memory card, the product will not display properly on the computer until the memory card is installed.1Lossless Sound Quality: Portable MP3 music player has lossless sound quality and supports MP3, WMA, FLAC, APE. 2Large Memory Capacity: MP3 player supports up to 64G of memory capacity, (note: the card is not included) and the original for MYMAHDI memory card is recommended. 3Easy to Use: Portable MP3 music player allows you to select your favorite songs using playlists, supports random play and playback, and supports sleep shutdown. 4Long Battery Life: MP3 player can be used for up to 8 hours when fully charged, so you can enjoy music for a long time without worrying about the power. The battery takes about 2 hours to be fully charged. 5Premium Material: Portable MP3 music player is made of premium aluminum alloy, durable, corrosion resistant and long life.