VINA MS-319 Portable Outdoor Wireless Bluetooth 4.0 NFC Mini Speaker for IPHONE + More - Green
1.Battery Capacity: 2000mAh. 2.Bluetooth Resolution: CSR4.0 up to 13 metres open field; Compatible with all bluetooth devices 3.Support multiple Pair: up to 8 devices 4.Frequency Response:80Hz~20kHz 5.On/OFF Bluetooth switch