The Walker s Silencer 2.0 Rechargeable Electronic Buds feature a noise reduction of 24 dB, dynamic wind noise reduction, variable gunshot suppression, and an advanced digital circuit with auto shut-off. This set contains Walker s Silencer 2.0 Rechargeable Noise Reduction Electronic Earbuds, Usb Charging Dock, Sure-Lock Sizing Fin (3 Sizes), Foam Tips (3 Sizes), and Limited 1-Year Warranty.