Feature: 1. [Built in Speaker]The MP3 player built in speaker, so you can enjoy music without wearing headphones. 2. [Music Player]Use the playlist to select your favorite songs, support random play and repeat play. Adjust stereo sound. 3. [LCD Screen]1.77 inch TFT color backlit LCD display, more comfortable to watch in daily use. 4. [USB Rechargeable]Built in 250mAh battery, supports charging with power banks, adapters, computers, etc. 5. [BT Connection]This audio player features BT5.0, supports double way lossless wireless BT transmit. Specification: Description: Portable MP4 Player supports recording, e reading, video playback, radio search, song playback, playing games, browsing pictures, etc. BT 5.0 means faster transmit, stable performance, you can play music through a Bluetooth speaker or headset. Specifications: Types: 16GB TF Card Color: Black Material: ABS Style: Practical Battery: 1*3.7V 250mAh battery Display: 1.77 Inch TFT Resolution: 128*160 Play format: MP3 BT: 5.0 two way transmit Pairing name: MP3-01 Charging time: 2 hours Recording format: MP3, WAV System: Support for Win XP, for Win 8, for 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