Top Tech Audio Bluetooth Mini Speaker in Black is perfect for 4 hours of music. Connect your device and play your favorite playlist while on the go. The mini speaker is portable size, perfect to fit in a bag and backpack. Includes a micro USB cable and volume control, aux cord, FM scan, TF Slot, and it is able to receive and make calls. Supports PC, iPod, iPhone, MP3, MP4, other mobile phones by connecting with 3.5mm jack. The speaker is approximately 1.75" height x 2.25" diameter and comes packaged in a 3.50" x 2.50" x 2.50" hanging box.