IP3888B Features Mini Bluetooth speaker with stereo sound effect Built-in high sensitivity microphone with noise reduction processing Supports external TF card Features a standard USB/DC charging port Compatible with iPad， iPad 2， the new iPad， iPhone， Samsung and other Bluetooth devices Compact size for ease of carrying General Specs Brand & Model My vision N9 Operating Range Up to 10 m Microphone Yes Battery Built-in rechargeable lithium polymer battery LED Indicator Red/blue LED indicator Output Power 3W Charging Voltage 5V Charging Time Up to 2 hours Playing Time Up to 3 hours Package Details Weight: 329.56 g Size: 12.5*9.00*6.5 cm Package Includes * Speaker * USB Charging Cable * 3.5 mm Audio Cable