New Beyution Bluetooth V4.1, Best 2-In-1 Rechargeable Hi-Fi Stereo Bluetooth Speaker + Bluetooth Headphones, Black 2-in-1 Stereo Bluetooth V4.1 Headphones & Speaker system with Deep Rich Bass This is creational technology, Top Bluetooth V4.1 Version. Not only a Wireless Bluetooth Headphone, But also can use as a Wireless Mini Speaker. you can enjoy with using Bluetooth Headphones and Bluetooth speaker. Can work well with Iphone 6/5s/5c/5/4s/4; ipad series/ ipod/ itouch/ Mac laptop; Samsung S5/S4/S3/S2; Note 4; Note 3; Note 2 and Samsung Galaxy all Tablet; Nokia Toshiba Sony and HTC; ATT; BlackBerry Smart phone and devices; most Mac and Bluetooth-enabled PC laptops and all Tablet and desktops Built in Mic-Phone with noise cancellation technology; Built in 1000mAh Li-battery Battery, up to 25 hours Headphone play time, up to 3 hours speaker play time. also can Talk with Phone. Built-in Volume Control & Mode Selection Button to switch from Headphone to Speaker.