LG Aud71C-LHD: AUTO MUSIC PLAY BY LG RANGE OF FLOW Automatically Synch And Play Music From Your Smart Phone Or Tablet Just By Standing Close To Your LG Hi-Fi System. LG Range-Of-FlowTM Technology Uses Bluetooth To Detect Where You Are And Can Automatically Transition Playback From Your Mobile Device To The System Just By Standing Near The System. MULTI-POINT BLUETOOTH Let Your Party Go Wild. This System Has The Ability To Connect Multiple (Up To 3) Bluetooth Devices Simultaneously. Control From Three Different Devices Or Let Your Friends Also Send Music To The System. Indeed, A Great Party Always Becomes Better When Everyone Chips In.