BELUGA S330 Noise Canceling Wireless Bluetooth Headphones with Microphone for IOS and Android Devices - [Gray/Black] Professional Bluetooth CSR chip, high performance SBC codec, support aptX code. Adopt Echo cancellation and CVC6.0 Noise Cancellation Technology Bluetooth 4.1 Version single is much more stable than any headset in the market. Human Engineering Design,very soft,and can just fit naturally with the cochlea. Compatible with iPhone,Samsung,HTC and other bluetooth-enabled devices