7 LED Visual Modes: Pre-programmed dynamic multi-color light from romantic to beat dance flashing styles that offer you the beautiful enjoying not only for ears but also for eyes. Wireless Bluetooth V4.0: Compatible with all bluetooth-enabled devices for iPhone 7 Plus,7, Ipad, iPod, Samsung, Andriod and More, an incredibly powerful speaker that offers you instantaneous connection and longer bluetooth connectivity range of up to 10m (33ft). Ultra-portable Design: Quite slim and lightweight body, 180g net weight mini size with a hook, this wireless stereo subwoofer is really convenient to take wherever you go. Built-in battery: Integrated rechargeable 800mAh lithium battery, Enjoy 3.5-4hrs at 50% volume, Recharge in just 3 hours with a standard micro USB cable. Hands free call: Built-in microphone supports handsfree call. One button control for pick up and hang up, you can pick up your call in bathroom, car, at home or office with hands- free when it is connected to your smart phone.