Wireless Bluetooth 4.0 Music Stereo Universal Headset Headphone Vibration Neckband Style for iPhone iPad Samsung LG (Black-Blue) Compatible with majority of smartphones or tablets with Bluetooth function Can connect with 2 phones at the same time Audible Battery Status Alert, auto-Reconnect Stereo bluetooth headset,support two devices,heavy bass,Boot vibration Shipping from China,7-10 business days