Greatnnce Wireless ESS Speaker GTS-1970 4Inch
- Wireless transmission rang : up to 10meter . - Speaker drive size : 4inch . - Output power :5W . - Frequency response ratio : 100HZ - 20KHZ . - Charging time : 2-3h .
- Wireless transmission rang : up to 10meter . - Speaker drive size : 4inch . - Output power :5W . - Frequency response ratio : 100HZ - 20KHZ . - Charging time : 2-3h .