Wireless handheld system of 8 frequencies UHF, diversity. Includes HT 420 handheld transmitter-microphone with D5 dynamic capsule and rechargeable capability. Receiver SR 420 with the possibility of using external antennas, low battery indicator. 1.5V AA, possibility of up to eight (8) channels / band, in multi-channel. Battery life up to & 8 hours with one battery running simultaneously. Suitable for song & speeches.