Advanced Noise Cancellation TechnologyBuild-in 2 independent active noise cancelling chips and 5 microphone, the noise reduction depth of E600Pro wireless headphones can reach 35dB, which can effectively reduce the noise in the low and medium audio, such as the noise in the office, airplane, train. Maintain your focus with E600Pros hybrid active noise cancellation. High Definition MusicEquipped with the most high-end chip QCC3034, E600Pro Supports aptX HD, aptX, AAC and SBC. Custom oversized 40 mm dynamic drivers, these features will deliver you an immersive sound experience. Even More, E600Pro Bluetooth headphones also be featured with aptX Low Latency, Pair with 1Mii Bluetooth transmitters, it's an ideal wireless headphones for TV watching without lip delay.