Tivoli Audio M1BTCLA Bluetooth AM/FM Radio (Walnut/Beige) Play music wirelessly through the Model One BT Bluetooth version 2.1 + EDR Simple to use - no complicated set-up Uses Bluetooth wireless technology's advanced A2DP profile for high-quality audio Frequency Hopping Spread Spectrum (FHSS) results in low-to-no noise interference with other wireless devices