Andoer K7 Wireless Stereo Bluetooth 4.1 Headset In-ear Music Headphone Hands-free with Mic Yellow for iPhone 6s 6 Samsung S6 Note 5 Smart Phones Laptop Tablet Other Bluetooth-enabled Devices Uses the renowned stereo Bluetooth 4.1 chip to ensure high-fidelity sound quality and stable performance. Built-in high-performance Microphone and Speaker, offering you HIFI sound effect (Perfect sound Quality and clear communication effect.) Support Multi-point Technology: Can simultaneously connect two smarts phone. So you can seamlessly switch between your business and personal phones. Supports hands-free call, you can easily make and receive calls while traveling & driving after connected with Bluetooth-enabled smart phones. CVC 6.0 intelligent noise reduction technology enhance call audio transmission performance.