Speaker System Drivers 2 x 1.57" / 40 mm Microphone Built-In Mic Yes Wireless Connectivity Supported Bluetooth Profiles A2DP AVRCP Bluetooth 4.2 NFC Yes Wireless Range 33' / 10 m Wired Connectivity Inputs 1 x 1/8" (3.5 mm) Stereo 1 x USB Micro-B Outputs Not Specified by Manufacturer Battery Battery Chemistry Lithium-Ion Expected Battery Life 8 Hours Power DC Input Power 5 VDC at 1 A Physical Memory Card Slot None IP Rating IPX4 Dimensions (W x H x D) 5.2 x 5.0 x 2.2" / 13.1 x 12.7 x 5.6 cm Weight 1.2 lb / 0.5 kg Packaging Info Package Weight 1.95 lb Box Dimensions (LxWxH) 8.4 x 5.9 x 2.7"