KTS-1328 8″ Wireless Bluetooth Speaker with Remote Microphone

Wireless transmission range up to 10m Speaker drive size: 8 inch Output power: 20w+10w tweeter Frequency response: 100hz – 20khz Signal Noise ratio: >=85db FM scan:87.5-108.0MHz USB charging: DC5V Battery Capacity: 2400mah Can support SD card up to 32gb Charging time: 3 hrs