DESCRIÇÃO DO FABRICANTE: The "Talking Timer" of VL is equipped with: remaining play time warning with acoustic output, soundless mode, memory button for fast resetting of the play time and automatic disconnection after the end of the play time (increases battery life). The VL Talking Timer fits directly to the 9 Volt and 12 Volt VL Revolution. The timer can also be carried at the provided VL lanyard around the neck. Optionally there is a mask band mounting available for the timer.