Mini but mighty Bluetooth speaker with crisp, clear and powerful sound output. Built-in Mic, Wireless 4.2V Bluetooth Pairing. Size: 32mm by 41mm height. Speaker Weight: 46g. Bluetooth Version 4.2. Lithium Ion Battery (3-4hrs playtime). Speaker Output: 3W. Working distance: 10m. Remote shutter function. Certified: CE, RoHs & MSDS. Packaging: Zipper pouch and paper box.