Breeze II has a powerful 20W inbuilt speakers with acoustically tuned amplifiers to offer unbelievably clear sound output, relaxing bass and mid-ranges. You can easily pair two of these using TWS to make true wireless stereo. Enjoy True Dual Speaker Stereo by connecting two Breeze II’s. True Wireless Stereo - Get Left and Right channel for clear, powerful 360o sound. Enjoy a thriller on your smartphone, tablet, laptop or computer, with Portronics Breeze II using Bluetooth, Micro SD Card & Aux cable. Also use it as a speakerphone. It has a massive 2000mAh rechargeable battery that is sufficient to power this 20W monster for up to 7 hours. Due to its intelligent design, Speaker will power off automatically after 20 minutes if there is no operation. For any product related query, service and warranty contact - 8588835580