Hi I have a new never used Educator (formerly known as Einstein) BarkLess E-Collar that I bought from leerburg 2 months ago. It has a charging port and sensitivity adjustments. I paid 89.99 but I will let it go for 50 plus shipping 5$. Email is best way to reach me. Ba_reefer@yahoo.com
Local pick up is available in in Berkeley California
Here is a link great reviews and sold out now at 69.99.
Leerburg | Educator (formerly Einstein) BarkLess Ecollar