[Usage time] Built-in lithium-ion polymer 250mAh battery. Music playback time is up to 8 hours, video playback time is up to 4 hours, and it is fully in 90 minutes via a USB charging cable. [ and Portable] This MP4 music player is mini size and , easy to put in purse, pocket or armband. Easy to carry and enjoy your wonderful musical journey. [Easy to Use] This music player with classic button design, Downloading is as simple as dragging and dropping music files or folders while connected to your computer. Works perfectly with the car via the auxiliary port. [Storage Capacity] Built-in storage capacity, With noise-canceling voice recorder; simple file management. [Widely Used] Suitable for exercising, running, jogging, traveling and hiking. Stylish and sophisticated appearance, perfect for your entertainment and study, outdoor and gym fitness.The . Product Name: MP3 Music Player Battery capacity: 250mAh (with circuit protection) Use time: 8 hours for music, 4 hours for video Charging time: 90 minutes Body capacity:8G Screen size: 1.8 inches Screen color: color screen Language selection: 28 languages Music function: support MP3, WMA, OGG, APEFLAC, WAV and other formats Video function: support AMV format Picture function: support JPG, JPEG, BMP, GIF format E-book function: support format Other functions: Bluetooth function, radio function, recording function, stopwatch function, step function, timer shutdown function, dictionary function Colour:black Material:plastic Package Contents: 1 x Music Player 1 x USB Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.