SELENECHEN HV-800 Wireless A2DP Bluetooth Headset Earphone Universal Sports Music Neckband Stereo Bluetooth Headphone for Iphone Blackberry Lg Samsung (black) NeckBehind design features a curved fit for comfortable around-the-neck wear HD Voice and aptX technologies along with echo cancellation and noise reduction deliver crisp, detailed sound with robust bass for clear communication and audio playback Google Voice Actions integration lets you easily look up contacts, check the weather, receive updates and more by simply speaking commands Music and call controls conveniently located on the sides of the device Provides up to 15 hours of talk time or up to 10 hours of audio playback on a full charge for extended operation. Up to 21 days of standby time