GaN or Gallium Nitride chargers are about three times as efficient as silicon-based chargers in converting power to electricity, and they're much smaller and more portable too, enabling them to charge your phones ten times faster.

Promate's best Bluetooth speakers as well as some earphones come equipped with True Wireless Stereo (TWS), which is a unique Bluetooth feature that will let you enjoy true stereo sound quality without cables.

Bluetooth is the reason why you can connect your phone to any number of speakers or headphones. It may look like something simple and unchanging, but in truth, it's more complex than you think.