Comes With Colorful Ambient Lighting And Home Card Insertion Sound System Features: Colorful lighting: The sound system is designed with LED ambient lights, which can create affluent and colorful visual effects based on music scansion or color changes. At night or in dark environments, this lighting effect can add a mysterious and romantic vibe to apartment. Blue Message 5.3: Blue Message 5.3 refers to Bluetooth 5.3 version, which is one of the latest versions of Bluetooth technology, with faster transmission speed, lower energy consumption, longer transmission distance, and more stable connection. Features: In addition to Bluetooth connection, this speaker also supports various audio input manner such as USB, memory card , and AUX cable (usually 3.5mm audio cable), making it convenient for users to play music from various devices or storage media. Playback time: The audio system can continuously play music for 3 to 6 hours when fully charged, depending on factors such as volume, type of music played, and whether LED lights are Opened. Charging time: The charging time of the audio system is about 2 to 3 hours, and the specific time may vary depending on the charging device or charging environment. Transmission range: The Bluetooth transmission range can arrive 10 meters, which means that in open environments, users can outright move within 10 meters of the audio system without worrying about music interruption. Battery: The audio system is equipped with a 3.7V/1200mAh lithium battery with a protective circuit to ensure the security of the battery during use and charging Product Description: Product Name: Bluetooth Audio System Color: Black Material: ABS Bluetooth: Bluetooth 5.3 Functional features: LED ambient light, USB, memory card, AUX Battery life: 3-6 hours Charging time 2-3 hours Transmission range: 10 meters Battery: 3.7V/1200mAh with protection Output power: 4.5W Product size: 10x10x23.5cm (3.94x3.94x9.25 inches) Packaging size: 24x11.3x11cm (9.44x4.45x4.33 inches) Gross weight: 650 grams (1.43 pounds) Package Contents: 1x Bluetooth audio system 1x charging cable 1x instruction manual