The WGW-SL1 operates on the 2.4 GHz frequency and performs best on the 20 MHz band across all channels. It does not operate on the 5GHz frequency.
If a wired network connection can easily be made with a Cat5/6 cable, you may prefer to purchase the GW-SL1.
Please note that the GW-SL1 is NOT a music streaming device. Its purpose is to allow control of the system from a smart device.