The Conceptronic Wireless Bluetooth Speaker is a Bluetooth multimedia speaker which connects to any Bluetooth phone, iPad, tablet, or laptop. With a stylish and simple design, this clever speaker brings the music to any situation in life.• Bluetooth 3.0 wireless connectivity• Built-in microphone for hands-free voice calls• Plug and Play music from Micro SD/TF card• 400mAh rechargeable battery built-in. Sustains 3hr average operation