Speaker

Wireless transmission rang: up to 10 meter Speaker drive size: 4 inch Long Lasting Output power: 5W Frequency 100Hz-20Khz Signal-to-noise ratio:>85db FM scan Rang: 87.5-108.0Mhz USB charging: DC5V Battery capacity: 600mAh Max memory support(USB.SD): 128GB Playtime: up to 3 hours at 75% Volume Charging time: 2-3 hours Support BT, FM,