Specification: Music format: supports all common rate of MP3 format Headphone jack: support headphone output Power Specifications: DC5V (USB power adapter or computer USB charging) Lithium battery specifications: 600mA Endurance: 2-5 hours, the actual playback time depends on the volume.Frequency response range: 120-16KHz Storage media: Storage Card / TF memory card that supports FAT16 / FAT32 file system SNR: >95dB Output power: RMS 3Wx2 THD = 10% Color: Black, Silver, Blue, Green, Rose (Optional) Size: 5 x 5 x 5.2cm / 1.97 x 1.97 x 2inch Package Weight: 150g Quantity: 1pc Package included: 1 x Mini Speaker Music Player Note: 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 5 Colors: Mini digital portable speaker has a light and compact body, which can be placed in your hand. It is very convenient to carry. Cute mini appearance, five colors to choose from, like to buy now. With 600mAh Battery: With a 600mAh battery built into portable mini speaker, the playback time can be up to two to five hours, although the actual playback time depends on the volume. Portable Speaker: This mini speaker music player is the perfect portable speaker for both outdoor and indoor use and can be carried around as needed by the individual. Plug and Play: Music player speaker can be inserted into TF card and U disk, and supports memory card /TF memory card of FAT16/FAT32 file system. Plug and play. Built-in High-sensitivity FM Radio: The speaker has a built-in high-sensitivity FM radio frequency module, and the signal is excellent. Portable speakers can be used in homes, dorms, kitchens, bathrooms, cars, parties, travel, sports, and more.