Francois et Mimi Elite Hardi Bluetooth Enabled Wireless Over-Ear Headphones with Built-in Microphone, 12 Hour Battery Utilizes CSR 4.0 Coupled with High-performance Drivers to Produce Crystal Clear Sound Enjoy Complete Wireless Freedom for up to 30 Feet Built-in Battery Lasts up to 15 Hours on a Single Charge, Standby Time up to 180 Hours Soft-Touch, Extendable Rubberized Band Allows for a Comfortable Fit Built-in AUX Input Permits Non-wireless Utilization