Item Type: MP3 PlayerMaterial: PlasticSize: Approx. 52.5x40.5x11.5mm / 2.07x1.59x0.45inScreen Size: 1.77 inch TFT Color ScreenResolution: 128x160 PixelsBluetooth: 5.0Supported Sound File Types: MP3, WMA, FLAC, WAV, APESupport Video File Type: Support AMV, AVI (Requires Conversion Tool Support)Supported Image File Types: JPEG, BMP, GIFSupported E Book File Type: TXTRadio: YesExternal Expansion Memory: Support Memory Card Expansion Card Up to 64GB (Not Included)Battery: 250mAh Lithium Battery (Shipped with Battery)Package List1 x MP3 Player1 x Headphones1 x Charging Cable1. It is a bluetooth transmitter, not a receiver, and cannot be paired with a phone or computer2. Please allow some error in manual measurement.1Multifunction: MP3 player has built in music, ebook reader, picture viewer, video, recorder, wireless, alarm clock, card reader and other functions. 2Memory Card: MP3 player needs to insert the memory card (not included) into the Mp3 player and use it, support memory card expansion card up to 64GB (not included), enjoy the music you want. 3Bluetooth 5.0 technology: MP3 music player uses Bluetooth 5.0, which provides faster transmission speed, longer connection distance and stronger anti interference ability. 4HiFi Stereo Sound: Fidelity HD speakers, superior sound decoding chips, restore the most original sound, immerse yourself in your music world. 5Easy to Use: MP3 player adopts a 1.77 inch TFT color display, which is more convenient to use and read. Small and lightweight, it fits in your pocket and is easy to carry for running, gym, walking, traveling.