Iwoo Wireless Bluetooth OEM Universal Stereo Headset Headphone Neckband Earbud Blue Easy magnetic earphone storage, Noise reduction & Echo cancellation Unique ring-necked design,opening up a new are of Bluetooth 100% Brand New and High Quality Bluetooth Version 4.0+EDR. Compatible with All Bluetooth-enabled smart phones laptops MP3 / 4 Etc Vibration alert on call, Earphone battery display on smartphone