<ul> <li> <strong>Active Noise Cancellation: </strong><span style="font-weight: 300;">Hybrid 3-layer Active Noise Cancellation. 1. Outward-facing microphone detects external sounds and counter with equal anti-noise to first cancel noise. 2. Inward-facing microphone listens inside the ear canal to pick up internal sounds and produce anti-noise again to twice cancel the left noise. 3. Ear caps prevent 90% of noise from going to the ear canal.</span> </li> <li> <strong>Transparent Mode:  </strong><span style="font-weight: 300;">You can hear what you want to hear, which lets outside sound in so you can hear and interact with the world around you. You can clearly hear the announcement of the airline or subway and what is saying around you without taking off the headphones.</span> </li> <li><span style="color: #000000;" data-mce-style="color: #000000;"><span><strong>Built-in Dual Noise Cancelling Microphone:</strong>  </span><span style="font-weight: 300;">Double microphone noise reduction system suppresses environmental noise. A dedicated internal and two external microphones pick up your voice and isolate it from outside noise.</span></span></li> <li> <strong>One-step Pairing:  </strong><span style="font-weight: 300;">Pick up the two headsets from the charging case, and they will be paired automatically. Then simply enable Bluetooth connection on your mobile phone to pair the device with your earbuds.</span> </li> <li> <strong>Support TOZO APP: </strong><span style="font-weight: 300;">TOZO APP offers quick and easy access to Active Noise Cancellation mode and EQ mode switch, as well as the ability to save noise reduction intensity customized adjustment and EQ curve settings. It can be used to customize Gesture operations and perform OTA software updates on the product. Where you can become acquainted clearly with the Quick Guide and Product FAQ.</span> </li> </ul>