Calus D3 Pro Bluetooth Speaker. Key features include:
Connectivity: Wireless Bluetooth, U disk, FM, TF card, and AUX play modes.
Water Resistance: IPX5 waterproof rating.
Features: 360° surround sound, hands-free function, built-in microphone, bass boost.
Battery: Built-in lithium battery.
Additional Features: Hands-free function, built-in microphone, bass boost.
Portability: Compact design.
Range: Up to 10 meters.