ZyXEL MWR102 Wireless-N Pocket Travel Router and Access Point for $15.99 shipped after promo code EMCXMXL79.  Here is a screenshot for your reference.  The travel router provides wireless internet access to many ultra-portable devices like PDAs, tablets, handheld game consoles, and measures only 2.5" x 2.0".  Most places have it for about $24.