Item Type: MP4 Music Player Material: Metal, Electron Internal Memory: RAM 2GB and ROM 16GB Memory Card Slot: Supports Memory Expansion up to 256GB (not included) Screen: 5.0 Inch HD Display Camera: 5MP Rear Camera Body Material: Zinc Alloy Screen Color: 16 Million Colors Screen Resolution: 1920 x 1080 Sound Format Support: MP3, WMA, WAV, OGG, FLAC, APE Video Format Support: MPEG, RMVB, MPEG 4 Operation Mode: Multitouch Type Interfaces: 1 x 3.5mm Headphone Jack, 1 x Type C Charging Battery Type: MP4 Built in 2200mAh Lithium Battery (included) Bluetooth Earphones x 2 Built in 35mAh Polymer Lithium Batteries (included) Bluetooth Earphone Charging Case Built in 350mAh Polymer Lithium Battery (included) Package List 1 x MP4 Music Player 1 x Type C Charging Cable 1 x Wired Earphones 1 x MP4 User Manual 2 x Bluetooth Earbuds 1 x Bluetooth Earbuds Charging Case Bluetooth earphones connect using the name "T21". 1Smoothly and Stable: Equipped with an 8 core chip, the MP4 music player offers faster responsiveness, features full function Bluetooth connectivity, allowing for seamless connections with Bluetooth headphones, speakers, and car stereos. 2Outstanding Audiovisual Experience: The MP4 music player boasts 5.0 inch, 16 million colors HD screen with a resolution of 1920x1080, supports HiFi lossless music playback and even has a built in camera for capturing moments. 3Long Battery Life: With a large capacity of 2200mAh, the MP4 music player is designed to provide extended usage, can continuously play music for up to 30 hours or videos for 5 hours, and standby for up to 300 hours on a single charge. 4Multifunctional Capabilities: The MP4 music player allows for versatile song sorting options, including by title, folder, album, artist, and genre, offers 4 playback modes, including random, sequential, circulation, and playlist circulation, catering to different listening preferences. 5High Speed Wireless File Transfer: In addition to USB cable connectivity for music and video uploads, the MP4 music player also supports file sharing or transfer via Bluetooth and WiFi, offering convenient and fast wireless file transfer options.