(1)Up to 2 transmitters can used at the same time.
(2) Bttery life up to 45 hours.
(3) The channels of all the receivers can be adjusted together by transmitter.
(4) One click to turn off all receivers.
(5) One click to make all the receivers mute.
(6)Can be used worldwide.
(7)Esay to charge, many choices for charging .
