Sunvito HBS-740 Wireless Bluetooth 4.0 Music Stereo Universal Headset Headphone Vibration Neckband Style for iPhone iPad Samsung LG (All Black) Enhanced Audio and Bass Response. Bluetooth version 4.0. Supoort wireless bluetooth music and making calls Compatible with majority of smartphones or tablets with Bluetooth function Unique around-the-neck design that's light weight and comfortable for all-day use Audible Battery Status Alert, Auto-Reconnect Vibrating call alert, help you not miss any calls. Audible pairing assistance