Mud River Training Dog Whistle Orange. WHISTLE Durable plastic Body Includes Metal Clip Ring for Lanyard Attachment Specifications for Mud River Training Dog Whistle: Manufacturer: Mud River Color: Orange Features of Mud River Training Dog Whistle WHISTLE Durable plastic Body Package Contents: Mud River Training Dog Whistle Metal Clip Ring for Lanyard Mud River 38106: Training Dog Whistle Orange