For over 25 years Walker's has developed innovative solutions for hearing protection & enhancement. The Walker's line of products, including Walker GWP-RZRWT-BT Bluetooth Razor Muff Adapter, are widely considered the industry standard for shooting protection and safety.Features :Add Bluetooth Connectivity To Any Razor MuffCompatible With Any Razor Muff Equipped With A 3.5Mm JackVoice Activated Transmit (Vox) Allows Hand's Free Communication (Wt Only)Walkie Talkie Communication Range Up To 3 Miles22 Channels99 Sub-ChannelsBluetooth Connectivity (Bt 5.0)Receive Calls Via Wt ControlsControl Media Playback Via Wt Controls