TOZO NC2 Active Noise Cancelling Wireless Earbuds Optical In-Ear Detection, Blue

【Active Noise Cancellation】Hybrid 3-layer active noise cancellation. 1. Outward-facing microphone detects external sounds and counter with equal anti-noise to reduce the environmental noise up to more than 35dB. 2. Inward-facing microphone listens inside the ear canal to pick up internal sounds and produce anti-noise again to cancel the left noise. 3. Ear caps prevent 90% of noise going to the ear canal. 【Transparency Mode】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 happening around you without taking off the headphones. 【Optical Sensors Technology】Features optical sensor technology, they sense when they’re in your ears and pause when you take them out. Adopt a high-precision contact sensor, optimized for daily use and sports occasions, achieving real-time detection of wearing status. 【One-step Pairing】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. 【Charge on the Go】TOZO NC2 wireless earbuds can last for over 10 hours of playtime from a single charge and a total of 42 hours with the compact charging case. Providing a convenient charging way with no strings attached. IPX6 waterproof can prevent the damage of the splash by sweat and raindrops.