If you are looking for a portable double pump by Medela but the price of the Medela Freestyle is above your budget, you may want to consider the Swing maxi.

• Simple and comfortable: easy-to-use pump interface with four buttons, small and portable

• Double pumping with 2-Phase Expression technology: shown to express on average 18 per cent more milk·  Easy and time-saving breast pump·  More milk with higher energy content·  Simple to operate, comfortable to use·  2-Phase Expression technology
• Thanks to Medela's 2-Phase Expression technology the breast pump simulates your baby’s natural sucking behaviour at the breast and feels very comfortable to use. The 2-Phase Expression technology provides a short, quick sucking rhythm until your milk starts to flow and then it changes to a slow rhythm to express the milk. The simple up/ down buttons allow you to control the vacuum to reach your highest comfort level as this is when your milk will flow best.
• Medela Swing maxi has a very simple design and is extremely portable. It is easy to assemble and disassemble  for cleaning, and all parts can be sterilised in a microwave for convenience.
• Unlike a single pump, Medela Swing maxi pumps simultaneously from both breasts and allows you to express more milk with higher energy content.
• The Medela Swing maxi combines the quality of the Medela Swing with a more powerful motor as it is made for double pumping. Compared to single pumping, double pumping can cut expression time in half and remove 18% more milk.
• Saves up to two hours per day when exclusively pumping