Check the listing for details. Retekess TT119 Church Translation System, Assistive Listening System, 300m/980ft. Condition: New. Listed at 289.99 USD. All-in-one receiving and transmitting machine; you don’t need to wear an extra receiver; you can listen to the original audio source on the transmitter Clear sound quality; mono can be changed to stereo sound which can give listeners a more realistic and three-dimensional sound environment; making people feel as if they are actually there Transmission distance; 300m/980ft transmission distance facilitates reliable and uninterrupted communication; ensuring that signals can be transmitted without degradation or loss over long distances Small size and portable; it won't take up too much space; you don't have to worry about the problem of being too large; whether in a conference room or on the podium; you can use it easily Volume adjustable.