All modern wireless headphones and speakers use the Bluetooth standard. It is also used for keyboards, mice and other peripheral devices. However, a better alternative is now being prepared, it is claimed. Spark Microsystems startup from Canada has announced Ultra WideBand (UWB) chips for wireless headphones and other accessories. It is argued that the novelty is much faster and more energy efficient than traditional solutions. The idea is that a very wide range of frequencies is used, and the signal itself is transmitted in short pulses to provide protection against interference from other equipment, as well as low signal delay. A similar system is already used in BMW and Volkswagen electronic car keys, as well as in the iPhone 11. It is argued that such a system is much more economical than Bluetooth. As for the digital indicators, the declared speed is up to 20 Mbps. Two ranges are used for operation: from 3.1 GHz to 6 GHz and from 6 GHz to 9.5 GHz.