... max) ,and it's novel,lightweight and fashionable. Wireless speaker1.Set the transmitter,receiver,amplifier,and speaker as ... and easy to operate.4.Wireless install,just turn on the power.5. Wireless Receiver: The FM reception mode ... speaker on the 3rd or 12VDC1.5A adapter Battery 8 AA batteries 4 transmitter or 9VDC0. ... 5A adapter battery full capacity, the volume on 70% ...