Sincerity (SAST) ST-809WM Square Dance Trolley Speaker Bluetooth Outdoor Portable Sound High Power Subwoofer with Wireless Microphone Amplifier is very good, the volume is very large.
Brand: SAST Audio/Speaker
Listing time: December 2015
Category: portable/square dance speaker
Material: wood
Color: black
Sound channel: other
Features: direct reading from USB flash drive/SD card