One (1) Ego White Vape Pen 350mah 510 Thread battery with charger. 
 
The top silver ring on the battery has the color and voltage inscribed on it for ease of reference because many brands colors have different heat ratings (it's not universal).   W (White) =4.0v, B (Blue) = 3.6v, & R (Red) = 3.2 volts, as can be seen on the silver ring in the pictures.  We have found this to be the best 350mah pen battery. Very reliable and works great!