This product packaging: host + 512M card + earphones + charging cable. Economical and practical, low price, small size, easy to operate, pure MP3 music player, it is not only a fashionable MP3, but also a fashionable element, decoration. Product introduction:1. Trendy shell, innovative clip-on design, ultra-small size. Weight less than 30 grams, can be clipped at will. Simple, exquisite and fashionable.2. Support digital music playback in multiple MP3 music formats.3. Can be used as a mobile flash drive to store MP3 songs or data anytime, anywhere.4. Can be used as a TF card reader.5. Has the functions of MP3 and mobile storage disk at the same time.6. Adopts USB1.1/2.0 interface, supports hot plugging, plug and play7. No external power supply required8. Uses multiple operating platforms WIN98/SE/ME/w7/w8/w10and above versions.9. Storage media. No mechanical parts, anti-vibration, anti-electromagnetic interference.10. Built-in high-energy rechargeable lithium battery, super long standby time.11. Stylish and compact design, beautiful workmanship, perfect gift.Instructions1. Turn on the MP3 switch, turn the switch to ON, and start playing. The status light starts flashing.2. Press the play button again to start the pause state.3. Press the volume control to adjust the size.4. Press the front and back to adjust the song you want to listen to.5. Stop playing, press pause first, and put the host in the pause state.6. Turn the switch to OFF. Shutdown is complete.Precautions for use:1. Please do not charge the MP3 by connecting to the computer USB port or charging the MP3 with a charger for more than 2 hours, otherwise it is very easy to cause the failure and damage of the built-in lithium battery of the MP3.2. Please do not pay attention to the status of the MP3 or charger indicator light when charging. It will be fully charged in 1.5 hours. After fully charged, the MP3 or charger indicator light will not change any state.3. The single connection time to the computer USB port should not exceed 2 hours. When unplugging the MP3 from the computer, you must strictly follow the requirements of the computer operating system and delete the hardware first and then unplug the MP3. Otherwise, it is very easy to cause the MP3 player to lose the software program.4. Please do not upgrade the firmware of the MP3 player when the new machine is in normal use.