Sing-e ZQS6165 portable speaker, a multimedia sound system featuring "Super Bass" technology for enhanced bass. Basic Specifications: Speaker size: 6.5 inches. Battery: 1800 mAh rechargeable, providing approximately 4 to 9 hours of playback time. Connectivity: Supports Bluetooth (version 5.0 or 5.3 depending on region), USB port, TF memory card input, AUX input, and FM radio. Lighting: Equipped with colorful RGB LED lighting that reacts to music. Additional Features: Comes with a wired microphone for karaoke function, and features a built-in handle for easy carrying.