Happy Hours Bluetooth Headphones, Over-ear Bluetooth Stereo Headphone Supports Wireless Music Streaming and Hands-Free calling with Mic (Secure-Fit, Lightweight, Sweatproof) (Black) Bluetooth version 4.0 + EDR provides the great stereo sounds and clear speech Up to 250 hours standby time Mini Foldable Flexible, comfortable, lightweight design Comfortable Behind the Neck design High Definition Stereo Sound with Noise Reduction and built in Volume and track control