Bluetooth Headset GZ-A10 by Gadgetzan - Wireless Stereo Headphones with Built-in Microphone and Magnetic Earbuds Storage, Neckband Design for Everyday Comfort, Compatible to All Smartphones(BLUE) Bluetooth version 4.1 with Multi-point dual connection technology enables you to connect two Bluetooth devices simultaneously Ultra-durable battery life allows up to 10 hours of call and up to 8 hours of non-stop music with a maximum of 300 hours standby time Unique and lightweight neckband design provides all day comfort. Perfect entertainment and communicating solution for sports and gym Easy paring with all Bluetooth enabled mobile devices plus on screen battery status monitor and 10 meters operational range without obstacles Experience freedom with built-in ANC (Active Noise Cancellation) microphone along with tremendous bass effect and lossless crystal clear music quality(30 Days Money Back Guarantee)