搜索：usb sd speaker

12 Inch Portable Home Trolley Speaker Box with Bluetooth and USB/SD MP3 Speaker

Anxun New Type RGB LED Lamp Waterproof Portable Sports Subwoofer Mini Wireless Bluetooth Speaker with TF SD Card USB Aux Slot

Plastic/ABS Trolley Speaker Box with Bluetoothusb/SD MP3player Speaker

HD Auto Ai Speaker Voice Tracking Smart Video Conference PTZ Cameras USB HDMI SDI IP