Excellent design: Combined with Smart Touch Screen technology and Echo Dot design, the Sensitive Touch gives you fun control. Gently touching with your fingertips makes it easy to switch songs and volume control and take calls. The keys are located on the top of the speaker, no need to take the speaker out every time, very easy to use. Its full high definition with a small body: Super compact design, 40mm 5W driver, with subwoofer resonator, Want loud sound during the meeting? When watching a movie on a computer at home, do you want higher volume, better sound? everything makes you satisfied!!!Bluetooth 4.1 Technology: Equipped with advanced technology, compatible with all Bluetooth devices. And the phone can display the remaining power of the Speaker, the Speaker will automatically reconnect to the last device used, connect your devices in just 3 seconds. Long battery life, fast charging: Built-in 1200mah Li-battery, enjoy 12-15 hours of music at 50% volume, up to twice as long as similar size portable speakers. Recharge in just 2-3 hours using the included micro USB cable. Complete Compatibility: Pair smartphones, tablets, laptops and more via Bluetooth, or connect non-Bluetooth devices like MP3 players using the included AUX cable. or insert a Micro SD card to play music