TF Capacity: Max support 32G (Not included) Powered By:1 x AAA Battery(Not included) Screen Size: 30x8.5(mm) Item Size: 95x25x16(mm) Net Weight: 26g Type:MP3 Player Music Format: MP3 Port: USB2.0 Port Audio Output: 3.5mm Instructions for use: Step 1: Install Micro-SD before using MP3 player, connect it to the USB interface of the computer, and wait for the driver to update automatically. : Format Micro-SD into FAT32 file system. Step 3: Store the MP3 file with the bit rate of 128kbps in the root directory of Micro-SD. Notice: Micro-SD should be formatted in FAT32 format TF card is not included,you have to use your own one(max support 32GB) Please confirm there is no battery before plug into the computer. Each Mp3 screen have protector film, . Colour:Blue Material:Plastic Package Contents: 1 * MP3 Player(without 1xAAA battery) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1.Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 3411 hours Hope you have a pleasant shopping experience!