Wireless Bluetooth Connectivity – Stable Bluetooth connection for seamless music streaming, calls, and hands-free use with smartphones, tablets, laptops, and other Bluetooth-enabled devices. wireless over ear headphones Headphone Power Source- Micro USB Charging.Other Power Features- Recharge 30 Minutes before 1st Use. Technology Used- Wired & Wireless, TF Card Supported, Bluetooth, Aux Supported. over ear bluetooth headphones