GREATNICE GTS-1386 Bluetooth, USB, TF Card & FM Radio Supported 4 Inch Driver Lighting Effects Speaker

Speaker size: 4 Inch

Wireless transmission range: up to 10m

Frequency response: 100Hz-20kHz

Signal to noise ratio: >=80dB

FM scan range: 87.5-108.0MHz

USB Charging: DC 5V

Battery Capacity: 500mAh

Max memory support(USB/SD) : 32GB

Charging time: 2 hours

MIC not supported

Product Size 14.1x 8.2 x19.2 cm