Bluetooth Speakers, Wireless Mini Speakers, Outdoor Portable Speakers, Built-in Mic Portable small design with size of 2.4x2.4x2 inch can enjoy music wherever you go Delivers superior sound in a compact speaker device,reliable wireless connection from up to 30 ft. away Talk Mode: Up to 5 hours; Charging Time: 2 hours Compatible with all Bluetooth devices: smartphones, tablets, and more Weighs only 0.5 pound for extreme portability