TF card not included. You can exchange the card randomly MAx support 64GB. Built-In Li-ion battery, charged via USB cable to the PC or wall socket adapter. Mp3 player, listening to music while exercising, to meet the requirement of your life. Portable sports pc, music player for a long time and without worrying about the power. The battery recharges completely in about 3 hours FM radio function Preset stations, manual turning, auto-tuning, radio frequency bands, etc. The old man listens to FM radio, children learn the language and listen to music.