1MP3 has a card slot, plug and play, supports MP3 music format and AMV video format. 2Support music, broadcasting, recording, video, ebook, builtin stopwatch function. 3Adjustable power saving mode and sleep mode, ideal companions for relaxing songs at night. 4Small in size and lightweight, which make it convenient for storage and carry to outdoor. 5Stylish and exquisite appearance, very suitable for entertainment and study, and gym fitness. Item Type:MP3Player Material: ABS Color: Black Screen Size: Approx. 1.8in Color Screen Weight: Approx. 106.0g/3.7oz Model: T4 Music Function: support MP3 Format Video Function: Support AMV Format Picture Function: Support JPG, JPEG Format E-book Function: Support TXT Format Bluetooth Function: Support Bluetooth 4.2 (Compatible with most Bluetooth devices on the market) Radio Function: Support Recording Function: Support Stopwatch Function: Support Timing Shutdown Function: Support Battery Type: 250 mAh Lithium Battery (with Circuit Protection) Continuous Use Time: 4-6 hours Charging Time: about 90 minutes Maximum Memory Supported: 32G Memory Card (not Included) Interface: Micro USBx1, 3.5mmx1 1 x MP3Player 1 x Data Cable 1 x Earphone 1 x Manual