【EXQUISITE MATERIALS】: Edifier is an expert in both comfort and sound, The W830BT earcups are made with extra soft earpads and covered synthetic leather, ensuring a comfortable wearing experience all day; 【ULTRAPORTABLE】: The earcups on the W830BT Bluetooth headphones are designed to rotate 90 degrees to lay flat or you can fold in the earcups themselves to make them more compact. This makes them easier for travel to fit inside a carrying case; 【OUTSTANDING CONFIGURATION】: The stainless steel in the headband is a flexible steel that can handle any amount of stress placed under it. The durability, functionality, and hi-tech design of the W830BT Bluetooth headphones are an audiophiles ideal set up;