Long Battery Life U5 music player can play music continuously for about 16 hours (tested at maximum volume), and it takes 2 hours to fully charge. Powerful battery life fully meets your needs for enjoying leisure, music, travel, sports, etc.Type-C & USB 2 in 1 Plug and Play No data cable is needed, you can directly connect it to mobile phones and laptops with type-c ports. A type-c to USB adapter cable is included, so it can also be used to connect to desktop computers or car audio systems with traditional USB ports. Use High-speed port to transfer files or charge U5 music player.Bluetooth 5.3 & Automatic Reconnection U5 MP3 music player adopts Bluetooth 5.3 technology, more stable connection, better compatibility, and lower consumption. You can pair the Bluetooth MP3 Player with wireless headphones or a Bluetooth speaker, automatically connects to the last Bluetooth device it was connected to, as soon as it is activated. Please use a 3.5mm audio cable to connect to the car. Some cars are not compatible with Bluetooth.64gb Large Memory Comes with 64 gb of storage space and it can be used as a flash drive as well. It supports formats such as mp3, wma, ape, flac, ogg. It can store about 13,000+mp3 music or 2000+ flac music to meet your needs. Used as a flash drive you can store large amounts of office and study files. It is recommended to transfer files in batches, each time within 1gb.Portable Back Clip DesignThe back clip design can be strongly clipped on any of your clothes. The size is only 3.1 inch * 1 inch and as light as 25g (0.88 ounce). You won't even notice you're wearing it. Supports FM Radio.