Portable MP4 Player supports recording, e-reading, video playback, radio search, song playback, playing games, browsing pictures, etc. BT 3.0 means faster transmission, stable performance, you can play music through a Bluetooth speaker or headset. Features: [Built-in Speaker]The MP3 player built-in speaker, so you can enjoy music without wearing headphones, and free your hand. [Music Player]Use the playlist to select your favorite songs, support random play and repeat play. Adjust stereo sound. [LCD Screen]1.77 inch TFT color backlit LCD display, more comfortable to watch in daily use. [USB Rechargeable]Built-in 250mAh lithium battery, supports charging with power banks, adapters, computers, etc. [BT Connection]This audio player features BT3.0, supports double-way lossless wireless BT transmission. Specifications: Types: No TF Card(Type 1); 16GB TF Card(Type 2); 32GB TF Card(Type 3); 64GB TF Card(Type 4) (Optional) Color: Black Material: ABS Style: Practical Battery: 1*3.7V 250mAh Lithium battery Display: 1.77 Inch TFT Resolution: 128*160 Play format: MP3 BT: 3.0 two-way transmission Pairing name: MP3-01 Charging time: 2 hours Recording format: MP3, WAV System: Support Windows XP, Windows 8, Vista Language: Chinese, English, and other languages Package Size: 12*7.3*3.5cm / 4.72*2.87*1.37inch Package Weight: 78g / 0.17lb Package List: 1 * MP4 Player 1 * USB Cable 1 * User Guide