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 2 x 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.