EALLC QY7 V4.1 Bluetooth Wireless Stereo Sports Earbuds Headphones with Microphone  (Black & Green) Bluetooth: V4.1, the signal strength is nearly twice times than the general Bluetooth headset in the market, High-fidelity stereo music and clear speech It has built-in high-quality battery playtime,durable design, Onscreen Battery Meter, Up to 5 hours of Talk/Playing Time and 145 hours Standby Time High quality materials, lightweight body allows you to wear more comfortable,SignalPlus for skip-free music outdoors. Use your music device left/right side, above/below waist, doesn't matter with SignalPlus Compatible with various brands of Bluetooth phones and Bluetooth notebooks, tablet PCs, MID, etc.High-fidelity stereo music and clear speech, You can begin enjoying CD quality stereo sound instantly PureSound In-ear white noise and listener fatigue reduction. Eliminates the white noise and delivers a clean audio experience offering hours of pure enjoyment Compatible with Iphone 6 (plus) 5s 5c 4s 4, Ipad 2 3 4 /ipad air 1 2 , Ipod, Android 4.4 and above, Samsung Galaxy S6 (Edge) ,S5 5 4 S3 Note 4 3 2, HTC one M8,M9,LG G2,Google Blackberry and other Cellphone/Smart Phone Mobile Devices