selling speaker audio rechargeable recording loudspeaker high sound high volume treble stall small horn megaphone 叫卖喇叭音响可充电录音扩音器超响大音量高音摆地摊小喇叭喊话器

basic style rmb 1 large battery + voice recording promotion standard bluetooth-1 section large battery/support typing recording folding version-1 section large battery/real-time shouting/20w dual-warehouse dual-power-built-in dual-power/voice recording/35w dual power single warehouse folding-built-in dual power/shouting/recording 30w bluetooth folding-1 large battery + mobile phone typing upgrade dual power bluetooth-built-in dual power/support mobile phone typing usb flash drive-2 large batteries + card usb port abs all-around version universal two batteries/typing shouting + card usb flash disk experience red and black-1 small battery/shout for 1 hour

[loud voice + direct charging] 30-day free trial