This item is available for pre-order now.
Atom (air transferring open module) is the 3rd generation module technology that was specifically designed to give the user maximum control with front vented In Ear Monitors. 
Boasting a bass tolerance of 1/2 db make these modules the most advanced way of fine tuning that perfect sound signature you’re looking for. A smaller filter design reduces the air volume in the module chamber which can have a positive effect on sound presentation. The 4 pack set comes with an assortment of +, N, -, O (plus, neutral, minus, open). 
Durability was a high priority with the atom design. Filtering using a precise medical grade tubing allows for a consistent production process. atom is also immune to shock from accidental drops and even humidity. Isolation levels vary among the modules relative to the bass leak. 
The ATOM-XL is meant for use with 64 Audio, Empire Ears and InEarZ IEMs.