MAIN FEATURES: Wireless playing Hands-free calls TF card playing AUX-in connection. Mini Bluetooth speaker for iPhone and smartphones is your great choice for wireless playing. Drive safe using Hands-free calls with stylish mini Bluetooth speaker. Modern design and amazing metal case convenient soft touch rubber buttons - you will love this mini Bluetooth speaker By BOOMER VIVI!</br>SUPER SOUND: A small mini portable speaker but it sounds great! Loud Music and Enhanced Bass. 95Db. Transmission distance >10M. Output power: 3W. Take pleasure in great sounding with KOSTA speakers. Feel the sound and have fun.</br>PLAY LONG: Up to 8 hours of playing on average volume * 5 hours on max volume with 680mAh Built-in lithium battery (with protection board). Charging fast and playing long. All you need for music in-home and outside. BOOMER VIVI portable speakers will not disappoint you. Try it today and you hear the difference.</br>BEST PRESENT: Wonderful portable mini Bluetooth speaker for iPhone is the best present for everybody. Nice looking Great sound. Give positing emotions to your friends and family with cool and useful portable Bluetooth speaker.. Bright colors£¬ powerful sounding£¬ convenient size£¬ and easy in use.</br>BOOMER VIVI IS A NEW BLUETOOTH SPEAKER for