Bradychan&reg; BH693 HD Stereo Wireless Bluetooth 4.0 Headset Headphone with Microphone - Hands Free for iPhone 5s / 5c / 5 / 4s / 4 Samsung Galaxy Note 3 S6 S4 S5 and All Android Windows Bluetooth Devices Enjoy clear conversations on both ends of the call : Bradychan Bluetooth Headset contains clear voice capture CSR's own echo cancellation and noise suppression DSP software technology for enhancing the audio quality of wireless products. Compatible with all phones that are bluetooth encabled: Apple, BlackBerry By RIM, Cal-Comp, Danger, HP, HP Palm, HTC, Huawei, Kyocera, LG, Motorola, Nokia, Pantech, PCD, Samsung, Sanyo, Sharp, Sony Ericsson, UTStarcom, ZTE Featuring simple pairing technology, the headset automatically pairs with the closest Bluetooth-enabled device. Simply turn on the Bluetooth feature on your smartphone, then select the Device and you're connected! Separate power mute and volume buttons provide easy access and control Up to 8hours of talk time, up to 240 hours of standby time