alto professional bluetooth total is a signal receiving system transmitted by devices equipped with bluetooth audio output, such as computer pc and mac, tablet, smartphone, ios device and android, useful for making wireless any active speaker and devices with analogue audio input. mono balanced or stereo mode, internal rechargeable lithium ion battery

compact bluetooth receiver with built-in microphone, 3.5mm stereo minijack output connection, internal rechargeable battery with up to 4.5 hours of battery life