IFA Digital via Amazon offers the Engrepo Portable Digital Air Compressor in Black for $45.99. Coupon code "QR293USN" drops it to $34.49. With free shipping, that's $11 off and the lowest price we could find, although we saw a similar unit for $4 less in May. Features include a lithium-ion rechargeable battery, cigarette lighter socket adapter, and LED display. Deal ends April 20.