PRO - KING Sound system rechargeable, with remote control, professional audio, woofer speaker with 2 microphones, with hand trolley, remote control, Bluetooth, Fm radio, USB port, Wi-Fi,MP3, TF Card port,
with 12volt, 4.5mah battery ,
3500watts ,24 hours battery lasten, low voltage fast charging system,
powerfull bass wonderfull filtered sound... very durable and efficient