The JBL Micro Wireless in Black is the first ultra-portable speaker featuring a Li-ion rechargeable battery built-in bass port and wireless Bluetooth connection. With a 1-5/8" (40-millimeter) driver it delivers full-range JBL sound with exceptional bass - yet it fits easily in backpacks or clips onto clothing. You can wirelessly stream audio to the speaker from any Bluetooth-equipped mobile phone or tablet or use the included audio cable to connect the speaker to any mobile device or MP3 player. You can even daisy-chain with other JBL Micro Wireless speakers for a powerful sonic experience. Five-hour Li-ion rechargeable battery; Built-in bass port; Built-in 11-13/16" (30-centimeter) audio cable; LED indicator; Auxiliary-input connector; Includes Speaker micro USB cable for recharging Carrying pouch Warranty card Quick-start guide.