Applicable scenarios: Mobile and portable Connection method: Bluetooth connection Frequency response range :50Hz-20KHz Signal-to-noise ratio: greater than 70db Number of speakers :1 Effective distance :10 meters Box material: Plastic Appearance dimensions :11cm/50cm/7cm Waterproof grade: Not waterproof Bluetooth version :5.0 Rated power :3 Net weight of the product :0.2KG Rated voltage :5 Additional function: Card insertion Whether it has a built-in battery: Built-in battery Packaging contents: Bluetooth speaker, USB charging cable, audio cable, Chinese and English instruction manuals, neutral packaging box Specification parameters Bluetooth solution: JL5.0 Speaker: 3W Battery: 3.7V 400mAh Receiving distance: 10 meters Charging time: 2 hours Playback time: 2 to 6 hours Frequency response: 50HZ-20KHZ Shell material: ABS plastic and electroplated Supported functions: Bluetooth/USB flash drive /TF card/audio output