【Product Description】 AKG B-Band Wireless System This system allows you to make instruments like guitars and keyboards wireless. It uses the B-band, which is less susceptible to radio interference, ensuring stable communication even over long distances. The receiver is powered by AC power. The transmitter is powered by one AA battery. 【Condition】 There is some wear and tear. The latch on the transmitter's battery cover is loose, so it was secured with masking tape. Operation has been confirmed. 【Contents】 Dedicated case Instruction manual Transmitter Receiver Balanced cable AC adapter Guitar, bass, keyboard, wireless B-band, AKG, guitar wireless