The speaker with USB interface, insert Bluetooth audio receiver into USB; Support smartphone with Bluetooth function, like IPHONE, IPAD, Android, etc; You should download IVT Bluesoleil to install in your computer; Power supply: USB; Bluetooth V2.0 + EDR; Output method: USB; Receiving distance: 1~10m; Sound output sampling rate: 44.1KHz and 48KHz; Change the ordinary speaker to wireless Bluetooth speaker