Vidvie SP920 Portable Bluetooth Speaker. Key features include:
Portable and compact design.
Bluetooth and AUX connectivity.
High-quality sound output.
Built-in rechargeable battery with up to 4 hours of playtime.
Built-in microphone for hands-free calling.
FM radio function.
TF card slot and USB port for charging other devices.
Waterproof with an IPX7 rating.
50W output power.
Available in black.
Battery capacity of 7.2V/4000mAh, providing up to 15 hours of working time.
Charging time of approximately 4 hours.