Engineered for Music Lover – Super compact 40mm 3W high-performance speaker produces clear sound with an impressive volume, pure sound quality. You will surely admire the its size and volume level. Touch Screen Control – This mini speaker adopts smart sensitive touch screen design. Gently touch with a fingertip to change the songs or volume level. Long Power Play – Built-in 850mAh rechargeable battery guarantees up to 4 hours playtime on a single full charge. Recharge it in just 2-3 hours using the included Micro USB cable. Unmatched Compatibility – Pair smartphones, tablets, laptops and more via Bluetooth, or connect non-Bluetooth devices such as MP3 players using the included AUX cable or insert Micro SD card to play music.