Electric fin, sup and kayak motorizing kit from a USA based marine dealer! We have sold over 100 of these efins on eBay with great success!
The battery on this efin is much stronger than other competitors. One competitors amps are 3500mah or 3.5 amps. The amps on this is 12 amps. The volts on others  is 24v vs 33.3 with Paradise Pad fin. No comparison on battery life.  A fin with the battery built in will be a underperforming product as the battery needs to be a good size to get good performance. All the electric cars need numerous big batteries for performance. You can't have a little battery and expect it to perform well. 
 
Kit Includes- 1 E fin,  1 battery, 1 remotes, 1 charger, 1 dry pack.  
Simple, reliable, electric!
Many other listing companies are not offering the battery pack for this price point!


 
ALL E-FiN, motorizing kits  will power your  SUP and Kayak up to 5+ mph, and for up to 6 hours.
Range depends on user weight, water conditions, and power level used and for how long, type and size of craft. 
 
Kayak, and inflatable may need an adapter fin box $49, to use same kit. 
Fin box will glue on inflatable  and can be bonded or bolted to a kayak.
 
Uses - Power assist for a weak paddler,  power assist against strong currents,  power for Touring and Fishing, or stand alone power source. The E-Fin motorizing system is a game changer 
 Runs up to 6 hours per battery on a single charge.  

The E-FiN SUP  kit, fits any standard SUP or surfboard board center fin box. 

 E-FiN KIT Includes
10" Motorized FiN, 
 1- 36 Volt Li batteries, 12ah
 1 -  Bluetooth remote control 
 1- Water proof carry pouch. 
 1 - Battery charger

Water resistant lithium battery case is IS-67 compliant.on/off switch, power cable connection port, and 1 charging port.

Compare the E-FIN, motorized fin, to any other powered fin. Price, battery life, speed and features.   

Warranty -  1 year on motor