43dB Double Active Noise Cancellation With Double ANC technology, five microphones work together to block noise up to 43dB. Bimodal Ear Canal Adaptive Audio Compensation(BECAAC) Headphones to detect the structure of the ear canal and the way people wear it and create exclusive noise cancellation parameters to revise the sound curve so that it can provide the same but superior listening experience to all people. VDCNN ENC for clear calls Equipped with Very Deep Convolutional Neural Networks(VDCNN) technology, the microphones can detect different environments and automatically adjust the noise cancellation level accordingly, so you always enjoy stable, natural and quality calls indoors or outdoors. High Definition Audio - Authentic HD Sound Hi-Res Audio 40kHz frequency response provides exceptional clarity and detail. The 40mm titanium diaphragm delivers cinematic, high-resolution 3D sound with powerful bass and clear highs. Transparency Mode Hear the surrounding sound clearly while still enjoying the music. Be aware of your surroundings when shopping/walking/chatting. Connect to 2 devices Supports connecting two Bluetooth devices simultaneously, allowing you to enjoy work and entertainment at the same time. 70 hours of ultra-long battery life With ANC off, enjoy about 70 hours of playback, turn on ANC for 35 hours of playback. Charging time 1.5h = 60h of use Battery Capacity : 500mAh Wireless Bluetooth 5.3 / wired mode Function: Bluetooth 5.3 chip provides fast and stable full connection transmission. In game mode, the low latency of 0.068s allows you to enjoy a better gaming experience. You can easily switch between Bluetooth 5.3 and 3.5mm jacks. These 2 configurations give you the flexibility to get the most out of all devices (Type C to 3.5mm jack included). Soft ear cushions, unprecedented comfort The protein synthetic leather ear cushions are combined with memory foam for excellent wearability with less pressure on your ears. They are so comfortable that you don't have to take a break from your favorite music. Smart app QCY APP supports EQ and customizable noise cancellation level. Now it's time to explore more in the APP and make your "own headphones". Button control, easy operation and Voice Assistant support.