Specifications: Support A-B repeat, a good helper to learn listening. Support expansion memory card, can store more music songs and files. Support video playback, FM radio, vocal recording and reading e-book. 4 types of eye protection mode, 10 levels of brightness adjustment. Item Name: MP4 Player Material: Metal + Glass Screen Size: 1.8inch Memory: 16GB Memory Card: Support 128GB TF Card (Not Included) Expansion Card: Support Operation Mode: Touch + Button Interface: USB 2.0 Screen Color: TFT Screen Screen Resolution: 320x240 Menu Language: 26 Countries Battery Type: Lithium Battery (Included) Battery Capacity: 300mAh Life Time: 30 Hours Video Playback Format: AVI/AMV Audio Playback Format: MP3/WMA/WAV/APE/FLAC Additional Functions: Watch Function, FM Radio Function, bluetooth-compatible Function (Optional), Picture Browsing, Recording Function Features: Portable, Rechargeable, Support TF Card Size: 9.6cm x 3.8cm x 0.6cm/3.78 and quot; x 1.50 and quot; x 0.24 and quot; (Approx.) Notes: Due to the light and screen setting difference, the item and 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x MP4 Player 1 x USB Cable 1 x Earphone 1 x User Manual Portable, Rechargeable, Support TF Card Metal + Glass MP4 Player Portable, Rechargeable, Support TF Card Metal + Glass