One powers on and works perfectly. The other one will not power on. Looks like 15.00 part. The Pair of Acoustic Research AWSBT 10 Outdoor Wireless Speakers are sleek black speakers made of plastic, designed for outdoor use. They are wireless and compatible with Acoustic Research brand products. The speakers have RCA and 3.5mm audio inputs, making it easy to connect to various audio sources. One of the speakers in the pair operates on battery power, providing convenience and flexibility for listeners looking to enjoy music outdoors without the need for a power source.