NXG NX-ARC-BT-B Personal Stereo Bluetooth Speaker with Microphone - Black Wirelessly stream music up to 33\\\' giving you the freedom to move around while enjoying the music Dual 2-watt 40mm speakers with a frequency response of 100Hz-20kHz Works with smartphones tablets and Bluetooth-enabled devices that support the A2DP EDR and AVRCP profiles Built-in rechargeable battery provides up to 4 hours of continuous music playback per charge Includes micro-USB charging cable