I got sick of buying batteries for my Tens machine's so I used some alternate means to power them up. The first one uses 3.5v of power, I have an old PC power supply that I've adapted so I can use the different DC voltages it offers, 3.5v, 5v & 12v, the unit just plugs into mains power on a wall socket & the power supply converts AC to DC power & works a treat. The 2nd one needed 9v so used a AA batt 6 cell power bank which gives me 9v & soldered the batt bank leads to the terminals in the tens machine. Two working Tens toys. I started with 2 conductive silicon loops & 2 gel pad. One gel pad right on the edge of my arsehole, the other right under my scrotum. 1 loop around my balls, another around the head of my cock, and I start with one working up the power and intensity & switching between the different settings. Pulse, Numb, Absorb & Auto and get to where I can just bare the electric pulses it's sending to the gel pads making my arsehole pulse & my cock twitch & harden uncontrollably. Oh fk me it feels good & I start using the 2nd tens toy & build up the intensity on it, I can feel the two different toys pulsing out of sync to each other, OMG it's so good as I intensify both toys I involuntarily thrust my hips while kneeling, legs spread, clear pre-cum starts to dribble from the fat head of my pulsing cock, I grab my phone & take pictures of it leaking out of me before I wipe a finger, collecting it so I can taste myself. I notice my cock pump & realise there is room for that too so I begin pumping my pulsing hard on also. For some weird reason it intensifies the shock sensation through my cock & just causes more pre-cum to dribble out of my raging cock. Now I'm using only gel pads & both machines are at 90% power, I lube a finger & slip it in my pulsing arsehole for spice, Oh fk me it feels amasing as my butt hole grips my finger with some force as I rub my G-spot, I'm not going to last much longer so I remove the cock pump so I can jerk off slowly & finger myself while the tens milks the fk out of me. I have to moan into a pillow because I'm being to fkn loud, I body spasm involuntarily from the Tens, "Hmmm Ohh fk me" I moan lustfully as me pulsing cock starts spewing then shooting fresh thick ropes of my cum & I tremble violently from the orgasm I'm having caused by my 2 tens toys & the powerful electric pulses which continue to make my cock twitch even after cuming loads. Another 5min I keep the tens on, torturing my spent cock.. Feels so fkn good being milked by tens machines.. so arousing to turn the intensity up to beyond your physical threshold where your made to moan in pleasure.. Hands free is so good.