These Silencer Bt 2.0 Bluetooth wireless electronic earbuds from Walker s come with a free control app that allows for complete control of your Silencer Bt Models from your smartphone. This set contains Walkers Silencer Bt 2.0 Rechargeable Electronic Earbuds (Od Green), Usb Charging Dock with Integrated Rechargeable Lithium Battery, 3 Sizes of Sure-Lock Fins and Foam Tips (Sm/Md/Lg), Cleaning Brush, and Micro Usb Cable.