Mini USB rechargeable TF card MP3 player it is very convenient to use. It supports Max 8 GB TF card and MP3 music format. It is built-in rechargeable 120mAh battery. You can enjoy wonderful music on the way to work go home and before sleeping. The mini and built-in clip design is convenient to use. Color: Black Material: Aluminum alloy housing Display: Screen free Storage: No flash memory built-in supports TF card up to 8GB Audio format: MP3 Speaker: No Interface: TF + 3.5mm audio jack + min USB Power: Built-in 120mAh battery Working time: 3 hours Clip: Built-in back clip Accessories: 1 x 3.5mm earphone (92cm-cable) 1 x USB cable (10cm) 1 x English user manual