A portable, lightweighthearing loop amplifier suppliedin arobustplastic storage case. Ideal for restricted person to person contact in small meeting roomsand open-planoffices, etc. Simple one button operation. Integral high performance microphone. Excellent sound quality. Five years expected battery life under normal operating/charging conditions. Auto shut-off facility (user selectable for 10, 30 or 60 minutes) helps preserve battery life. Connection of the plug-top charger overrides the timer function to ensure the unit remains operational at all times. Unit can be used as normal whilst charging. Note this version of our portable loop amplifier DOES NOT include a wall-mounting storage shelf.