Bluetooth Speaker, Outdoor Portable Mobile Phone, Card Insertion, USB Flash Drive, Colorful Running Light, Portable Small Audio System Product parameters Material: Plastic Color: blue Connection method: Bluetooth connection Interface type: USB Frequency response range: 40Hz-20KHz Output power: 5W Signal to noise ratio: 60dB Power supply method: built-in lithium battery Channel: 2 Playback duration: 4 Number of speakers: 1 Effective distance: 10 meters method: buttons Applicable audience: general Supported formats: USB drive Product sise : 7x12x14cm/5.54.722.75 inch Product weight: 0.58 Ib Gross weight: 0.72 Ib Packaging size: 8.51215cm/4.725.93.35 inch Product description: Exclusive tool for music enthusiasts, the new generation, live restoration system, small body with large energy, low stress , and whole every cell of you Medium density box structure, reducing vibration and box generation, atmospheric, thick, and comfortable to Bluetooth fast connection, stable sound quality, and a pleasant experience without constraints Adhering to intention, embellishments for , like to each other's happiness, is to bear pressure together, and the convenient sound system helps you drive away The transmission distance is far, but if you change to another room to listen, it still smoothly Bluetooth fast connection, stable sound quality, and a pleasant experience without constraints Package Included: 1 x Computer audio