Fangrui Product Details Built-in Speaker: Delivers Clear, Robust Sound Directly From The Device. Bluetooth 5.0 Compatibility: Ensures Stable And Quick Pairing With Your Devices For Seamless Audio Streaming. Fm Radio: Stay Connected To Live Broadcasts And Enjoy Your Favorite Radio Stations Anytime. Supports E-books: Not Just For Music, Our Mp3 Player Allows You To Read E-books Making It An Travel Companion. Recording Capability: Record Important Notes Or Meetings With The Integrated Recording . Designed For Ease Of Use And Portability, The Mp3 Player Ensures You Miss A Beat Whether You Are , Traveling, Or Anywhere In Between. Display Screen: 1.8 Inches Battery: 250mah/3.7v Lithium Battery Charging Specifications: 5v/1a Input Charging Time: Approximately 2 Hours Bluetooth Version: 5.0 Tf Card Expansion 128gb Audio Formats: Ape, Flac, Mp3, Wma, Wav, Aac-lc Video Format: 128 * 160 (conversion Tool Conversion) Recording Format: Wav Image Format: Supports Jpg/jpeg/bmp E-book Format: Document Due To Different Bat