Feature: 100% brand new and high quality. Invisible in Ear Ultra-Small Sports Wireless Bluetooth 4.1 Stereo Headset Mini Earphone Earpiece Earbud Headphone with Microphone Hands-free Calling. The Newest bluetooth 4.1 headset with lightweight and compact portable design. Simple and Stylish. Built-in A2DP /AVRCP audio processing system, can be a very good eliminate Noise and echo,Perfect for Stealth Listening or watching at work. Up to 6 hours of continuous talk time, 5 hours of music time. the wireless range up to 10 meters.it offers you the wireless freedom, and it gives you the most comfortable wearing experience. Compatible with most Bluetooth-enabled devices. This will connect automatically with a phone paired previously. Bluetooth version: Bluetooth v4.1 + EDR Mode: HFP、HSP、HD Voice、Voice Prompts A2DP、AVRCP. Transimit Power: Class 2 Music Time: 6h about Talking Time: 5h about Standby Time: 100h about Package Include: 2X Bluetooth Headset 1X charge cable 1X Storage bags 1X manual