Active noice cancelling
Valco has chosen the best (value) bluetooth chipset Qualcomm had available, plugged it in and made some DSP magic for the audio. The ANC chip is from ADI (Analog Devices, Inc.) and there are four microphones constantly monitoring the ambient. With this combination Valco's headphones have Bluetooth 5.0 and the same ANC quality than the more expensive ones on the market.
The incredible sound quality paired with an unbeatable price. Perfect value for your money.