Specifications include, but are not limited to: Autotether Marine Kit or DNR Approve Equal Quantity 30, color White Wireless engine cut-off & overboard alert. Product Specifications Waterproof: To NEMA 6P Microcontrollers/Radio: 2.4 GHz Band Typical Battery Life: Up to 300 Hours (Alkaline) Typical Range: Up to 150 Feet Host Dimensions: 3 ¾” x 2 ¾” x ¾” Host Batteries: (6) AAA Batteries SensorDimensions:3⅛”x1½”x¾”Sensor Batteries: (3) AAA Batteries Includes the following 1 – Autotether™ Host Unit – Connects to the boats engine cut-off switch and is host to up to four (4) Remote Sensors 1 – Operator Remote Sensor – Wireless remote sensor worn by boat operator. Cuts engine and sounds alarm when operator goes overboard or separate from Host unit by more than 100ft. 1 – Kill Switch Clip Kit – Set of replaceable kill switch clips and clip replacement tool. Clips allow connection to any boat’s kill switch – Clips included.