Other Wireless Headphones We’ve TestedWireless headphones are the default these days, and there are roughly 1 gazillion of them (and counting). What to Know AccordionItemContainerButton LargeChevron If you're new to wireless headphones or need a refresher, here are some helpful pointers to know before you buy. Bluetooth is the wireless format used by all portable wireless headphones to connect to and play sound from devices like a phone, computer, or tablet. EQ stands for equalization, which in the case of wireless headphones, uses digital processing to adjust parameters like bass, midrange, and treble. How We Test Headphones AccordionItemContainerButton LargeChevron We test headphones and earbuds the way that we live.