: Compact desktop form factor, typically available in black.

: Equipped with two carrying straps and hook-and-loop fasteners to secure contents. Polanik Javelin Bag - HaeSt Sporting Equipment

: Used for protecting cable connections and distribution in outdoor or industrial environments. Polanik Javelin Bag (Model SP-PO-BAG-400)

: Waterproof synthetic material coated on the inside for extra durability.

The technical term typically refers to a model of 2.1 active speaker systems or electrical junction boxes , depending on the context. If you are looking for product features related to these or a "(2)zip" (likely a 2-piece or 2-satellite setup), here are the relevant features: JetBalance JB-400 Active Speakers