MD USA - Portable Mini Stereo Speakers with 3.5mm Folding Jack Plug in RED and FREE Micro USB Cell Phone Wire Charger Cable Easy to use plug and play unit with 2 built-in 1" audio speakers Compatible with CD and MP3 players, PC's, tablets and cell phones Each unit has a 3.5mm Folding Jack (Plug) Lightweight and portable for use anywhere - Requires no batteries Plus FREE 1 meter micro usb cell phone wire charger cable