1)You can play music, pause, skip forward, go back and adjust the volume all with the touch of a button. 2)no environment

         Multifunction Interphone

♣ You can play music, pause, skip forward, go back and adjust the volume all with the touch of a button.♣ no enviroment and competitive price

♣ Compatible models: iPhone 3G · iPhone 3GS · iPhone 4 · iPhone 4S[Product Data]

♣ Product Size:7.87x6.65x2.05cm ; Power Supply:(2)AAA type batteries (sold separately),♣ Continuous use time: about 15 hours (using alkaline batteries),♣ Cord Length: Compressed 50cm (about time), Plug: 3.5mm♥Please do not forcably stretch the cord as it will run the risk of breaking it.♥ This product is intended for iPhone. It will work with other models, but has only been tested with iPhone.Purchase at your own risk if you are using a smartphone other than iPhone

Multifunction Interphone