Feature: 1. Made of high quality fluorescence surface aluminum alloy, elegant and stylish in appearance. 2. Good sound quality lets you indulge in your favorite music 3. Supports Security Digital Memory Card, TF card, USB disk, FM, etc. 4. Supports Line IN function, receiving the audio source from MP3, MP4, PC, Notebook, Phone, etc. 5. Supports USB2.0 high speed transmission, fully compatible with USB1.1. Specification: Function Buttons: on/off, menu, previous song, next song, play/pause, volume control LED display panel. Built-in high capacity rechargeable battery, support long play. Compact and portable, convenient to carry. Specifics: Interface Type: USB, AUX Speaker Type: Mini Playback Function: Radio, MP3 Material:Aluminum Support Memory Card: Yes Display Screen: Yes Audio Classification: Mini Cabinet Material:Metal Support APP:No Support Apt-x: Yes Special Feature: Wireless, Portable, Mini Remote Control: No Speaker Type: Surround Type: Passive Specifications: Material: Aluminum alloy Power source: Li-ion battery / DC5V SNR: more than 80dB Music format: MP3 Size: 50*50*50mm Package List: 1 x Mini Portable USB Speaker 1 x 3.5mm Audio Cable 1 x USB Charger Cable Note: ook, Phone, etc. Supports USB2.0 high speed transmission, fully compatible with USB1.1.