The Chasing E-Reel is just awesome! because it eliminates manual tether retrieval. You can choose the 328 feet or 656 feet (100 or 200 meters) tether length that is resistant to fatigue and friction damage for a consistently reliable transfer of data.
The E-Reel electronic winder makes the M2 even more convenient to operate, quick to deploy, and easy to retrieve. The battery-powered E-Reel can automatically roll up or unroll its 656 foot long cable in just 3-9 minutes, up to 30 times per charge. It comes equipped with an anti-explosion cable, battery protection technologies, and a power display.