Portable- Micro Sd Tf Card, Usb Disk Music, Amplifier Stereo, Mini Speaker. Features: Made of High Quality Fluorescence Surface Aluminum Alloy, Elegant and Stylish in Appearance. Good Sound Quality Lets You Indulge in Your Favorite Music. Supports Security Digital Memory Card, TF Card, USB Disk, FM, Etc. Supports Line IN Function, Receiving the Audio Source from MP3, MP4, PC, Notebook, Phone, Etc. Supports USB2.0 High Speed Transmission, Fully Compatible with USB1.1. 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. Specifications: Item Size: 50*50*50mm Material: Aluminum Alloy Power Source: Li-ion Battery / DC5V SNR: More Than 80dB Music Format: MP3 Package Included: 1 X Mini Portable USB Speaker 1 X 3.5mm Audio Cable 1 X USB Charger Cable . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.