Red Wireless Bluetooth Version 4.0+EDR HV-800 Neckband Sport Stereo Universal Headset Headphone for Smartphone 100% Brand New and High Quality Bluetooth Version 4.0+EDR. Unique neck-strap design for easy carrying, Ultra-light weight for all day comfort. Vibration alert on call, Earphone battery display on smartphone. Easy magnetic earphone storage, Noise reduction & Echo cancellation. Compatible with All Bluetooth-enabled smart phones laptops MP3 / 4 Etc.