Bluetooth Headset, BlueFit Hands Free Wireless Earpiece with Microphone - Compatible with iPhone, Android, Samsung Cell Phones Outstanding HD Music and Voice Sound Quality: Built-in the high-end CSR brand chipset from U.K. That is the key to provide high quality sound. Bluetooth V4.1 Headset: Supports the advanced Bluetooth version 4.1 that supports enhanced voice clarity through wideband audio support. Main Specs: Up to 7H talk time, 7 days standby time, 2 hours charging time, 10 meters range, ultralight and comfortable design. Connect to 2 Devices: It can be connected with up to 2 Bluetooth devices, like iPad+iPhone, at the same time through Bluetooth version 4.1. Easy to Use: Easy to pair, control volume, start/stop the music, answer calls and move between songs. The 180 degrees flip-boom arm allows to adjust the angle and fit this headset in right or left ear , providing great convenience for users.