Airlink101 AMS-1000B Smartphone Compatible Portable Bluetooth Speaker Type: Bluetooth Portable Speaker Music Time: Up to 5 hour(s) Bluetooth Version: 2.1 Bluetooth Profile: A2DP Battery: 450 mAh Built-in Lithium Ion battery Specifications: Input: DC 5V/1A Output: 3 watts, 40mm driver Compatibility: PC/Mac, MP3 players, smartphones, and tablets Dimensions: 2.36 x 2.36 x 1.97